diff --git a/bookstore/src/main/resources/templates/apiref.html b/bookstore/src/main/resources/templates/apiref.html
index ee2fc85..65820f2 100644
--- a/bookstore/src/main/resources/templates/apiref.html
+++ b/bookstore/src/main/resources/templates/apiref.html
@@ -1,25 +1,25 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
-    <link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
-    <link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
- 
-    <title th:text="${#messages.msgOrNull('page.title.browser.apiref')} ?: 'page.title.browser.apiref'">
-    page.title.browser.apiref
-    </title>
+	<link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+
+	<title th:text="${#messages.msgOrNull('page.title.browser.apiref')} ?: 'page.title.browser.apiref'">
+	page.title.browser.apiref
+	</title>
 
 </head>
 <body th:with="baseUrl=(@{__${#httpServletRequest.scheme}__} + '://' + @{__${#httpServletRequest.serverName}__} + ':' + @{__${#httpServletRequest.serverPort}__} + '/')">
 
-    <h1 th:text="${#messages.msgOrNull('page.title.webform.apiref')} ?: 'page.title.webform.apiref'">
-    page.title.webform.apiref
-    </h1>
+	<h1 th:text="${#messages.msgOrNull('page.title.webform.apiref')} ?: 'page.title.webform.apiref'">
+	page.title.webform.apiref
+	</h1>
 
-    <p th:text="${#messages.msgOrNull('page.text.apiref.warning')} ?: 'page.text.apiref.warning'">
-    page.text.apiref.warning
-    </p>
+	<p th:text="${#messages.msgOrNull('page.text.apiref.warning')} ?: 'page.text.apiref.warning'">
+	page.text.apiref.warning
+	</p>
 
 	<table class="table table-striped">
 		<tbody>
@@ -136,7 +136,7 @@
 					<small th:text="${#messages.msgOrNull('page.text.apiref.unix.info')} ?: 'page.text.apiref.unix.info'">page.text.apiref.unix.info</small>
 				</td>
 			</tr>
-		
+
 			<tr>
 				<th class="apiref-table-right apiref-table-title">
 					<h3 th:text="${#messages.msgOrNull('page.text.apiref.book.add')} ?: 'page.text.apiref.book.add'">
@@ -170,7 +170,7 @@
 					<small th:text="${#messages.msgOrNull('page.text.apiref.unix.info')} ?: 'page.text.apiref.unix.info'">page.text.apiref.unix.info</small>
 				</td>
 			</tr>
-			
+
 			<tr>
 				<th class="apiref-table-right apiref-table-title">
 					<h3 th:text="${#messages.msgOrNull('page.text.apiref.book.delete')} ?: 'page.text.apiref.book.delete'">
@@ -188,7 +188,7 @@
 					<small th:text="${#messages.msgOrNull('page.text.apiref.unix.info')} ?: 'page.text.apiref.unix.info'">page.text.apiref.unix.info</small>
 				</td>
 			</tr>
-			
+
 			<tr>
 				<th class="apiref-table-right apiref-table-title">
 					<h3 th:text="${#messages.msgOrNull('page.text.apiref.author.edit')} ?: 'page.text.apiref.author.edit'">
@@ -209,7 +209,7 @@
 		</tbody>
 		<tr>
 			<td>
-		    	<a class="btn btn-success" th:href="@{__${listpage}__}"
+				<a class="btn btn-success" th:href="@{__${listpage}__}"
 				th:text="${#messages.msgOrNull('button.page.list.return')} ?: 'button.page.list.return'">
 				button.page.list.return
 				</a>
@@ -218,7 +218,5 @@
 		</tr>
 	</table>
 
-
-
 </body>
 </html>
diff --git a/bookstore/src/main/resources/templates/bookadd.html b/bookstore/src/main/resources/templates/bookadd.html
index 37af943..eb26170 100644
--- a/bookstore/src/main/resources/templates/bookadd.html
+++ b/bookstore/src/main/resources/templates/bookadd.html
@@ -1,233 +1,233 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
-    <link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
-    <link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
- 
-    <title th:text="${#messages.msgOrNull('page.title.browser.add')} ?: 'page.title.browser.add'">
-    page.title.browser.add
-    </title>
+	<link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+
+	<title th:text="${#messages.msgOrNull('page.title.browser.add')} ?: 'page.title.browser.add'">
+	page.title.browser.add
+	</title>
 
 </head>
 <body>
 <div class="col-md-4 mb-3">
 
-    <h1 th:text="${#messages.msgOrNull('page.title.webform.add')} ?: 'page.title.webform.add'">
-    page.title.webform.add
-    </h1>
+	<h1 th:text="${#messages.msgOrNull('page.title.webform.add')} ?: 'page.title.webform.add'">
+	page.title.webform.add
+	</h1>
 
-    	<form th:object="${book}" action="#" th:action="@{__${addpage}__}" method="post">
+		<form th:object="${book}" action="#" th:action="@{__${addpage}__}" method="post">
 
 			<div class="bookform-section">
-			    <div>
-    				<h3 th:text="${#messages.msgOrNull('book.author')} ?: 'book.author'">
-    				book.author
-    				</h3>
-    			</div>
-    			<div class="form-group row">
-    				<div class="col">
-    					<label for="BookAuthorFirstName"
-    					th:text="${#messages.msgOrNull('book.author.firstName')} ?: 'book.author.firstName'">
-    					book.author.firstName
-    					</label>
-    					<input class="form-control" type="text" th:field="*{author.firstName}"  placeholder="Book author first name"/>
-
-    					<small class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.set.author.firstname')} ?: 'book.desc.set.author.firstname'">
-    					book.desc.set.author.firstname
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-info"
-    					th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    					book.desc.example.headertext
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.example.author.firstname')} ?: 'book.desc.example.author.firstname'">
-    					book.desc.example.author.firstname
-    					</small>
-
-    					<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.firstName')}"
-    					th:errors="*{author.firstName}">Invalid author first name value</div>
-    				</div>
-    			
-    				<div class="col">
-    					<label for="BookAuthorLastName"
-    					th:text="${#messages.msgOrNull('book.author.lastName')} ?: 'book.author.lastName'">
-    					book.author.lastName
-    					</label>
-    					<input class="form-control" type="text" th:field="*{author.lastName}"  placeholder="Book author last name"/>
-
-    					<small class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.set.author.lastname')} ?: 'book.desc.set.author.lastname'">
-    					book.desc.set.author.lastname
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-info"
-    					th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    					book.desc.example.headertext
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.example.author.lastname')} ?: 'book.desc.example.author.lastname'">
-    					book.desc.example.author.lastname
-    					</small>
-
-    					<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.lastName')}"
-    					th:errors="*{author.lastName}">Invalid author last name value</div>
-    				</div>
-    			</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookTitle"
-    			th:text="${#messages.msgOrNull('book.title')} ?: 'book.title'">
-    			book.title
-    			</label>
-    			<input class="form-control" type="text" th:field="*{title}" placeholder="Book title"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.title')} ?: 'book.desc.set.title'">
-    			book.desc.set.title
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.title')} ?: 'book.desc.example.title'">
-    			book.desc.example.title
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('title')}"
-    			th:errors="*{title}">Invalid title value</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookISBN"
-    			th:text="${#messages.msgOrNull('book.isbn')} ?: 'book.isbn'">
-    			book.isbn
-    			</label>
-    			<input class="form-control" type="text" th:field="*{isbn}" placeholder="Book ISBN code"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.isbn')} ?: 'book.desc.set.isbn'">
-    			book.desc.set.isbn
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.isbn')} ?: 'book.desc.example.isbn'">
-    			book.desc.example.isbn
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('isbn')}"
-    			th:errors="*{isbn}">Invalid ISBN code</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookYear"
-    			th:text="${#messages.msgOrNull('book.year')} ?: 'book.year'">
-    			book.year
-    			</label>
-    			<input class="form-control" type="text" th:field="*{year}" placeholder="Book publication year (YYYY)"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.year')} ?: 'book.desc.set.year'">
-    			book.desc.set.year
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				<div>
+					<h3 th:text="${#messages.msgOrNull('book.author')} ?: 'book.author'">
+					book.author
+					</h3>
+				</div>
+				<div class="form-group row">
+					<div class="col">
+						<label for="BookAuthorFirstName"
+						th:text="${#messages.msgOrNull('book.author.firstName')} ?: 'book.author.firstName'">
+						book.author.firstName
+						</label>
+						<input class="form-control" type="text" th:field="*{author.firstName}"  placeholder="Book author first name"/>
+
+						<small class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.set.author.firstname')} ?: 'book.desc.set.author.firstname'">
+						book.desc.set.author.firstname
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-info"
+						th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+						book.desc.example.headertext
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.example.author.firstname')} ?: 'book.desc.example.author.firstname'">
+						book.desc.example.author.firstname
+						</small>
+
+						<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.firstName')}"
+						th:errors="*{author.firstName}">Invalid author first name value</div>
+					</div>
+
+					<div class="col">
+						<label for="BookAuthorLastName"
+						th:text="${#messages.msgOrNull('book.author.lastName')} ?: 'book.author.lastName'">
+						book.author.lastName
+						</label>
+						<input class="form-control" type="text" th:field="*{author.lastName}"  placeholder="Book author last name"/>
+
+						<small class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.set.author.lastname')} ?: 'book.desc.set.author.lastname'">
+						book.desc.set.author.lastname
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-info"
+						th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+						book.desc.example.headertext
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.example.author.lastname')} ?: 'book.desc.example.author.lastname'">
+						book.desc.example.author.lastname
+						</small>
+
+						<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.lastName')}"
+						th:errors="*{author.lastName}">Invalid author last name value</div>
+					</div>
+				</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookTitle"
+				th:text="${#messages.msgOrNull('book.title')} ?: 'book.title'">
+				book.title
+				</label>
+				<input class="form-control" type="text" th:field="*{title}" placeholder="Book title"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.title')} ?: 'book.desc.set.title'">
+				book.desc.set.title
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.title')} ?: 'book.desc.example.title'">
+				book.desc.example.title
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('title')}"
+				th:errors="*{title}">Invalid title value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookISBN"
+				th:text="${#messages.msgOrNull('book.isbn')} ?: 'book.isbn'">
+				book.isbn
+				</label>
+				<input class="form-control" type="text" th:field="*{isbn}" placeholder="Book ISBN code"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.isbn')} ?: 'book.desc.set.isbn'">
+				book.desc.set.isbn
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.isbn')} ?: 'book.desc.example.isbn'">
+				book.desc.example.isbn
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('isbn')}"
+				th:errors="*{isbn}">Invalid ISBN code</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookYear"
+				th:text="${#messages.msgOrNull('book.year')} ?: 'book.year'">
+				book.year
+				</label>
+				<input class="form-control" type="text" th:field="*{year}" placeholder="Book publication year (YYYY)"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.year')} ?: 'book.desc.set.year'">
+				book.desc.set.year
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.year')} ?: 'book.desc.example.year'">
+				book.desc.example.year
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('year')}"
+				th:errors="*{year}">Invalid year value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookPrice"
+				th:text="${#messages.msgOrNull('book.price')} ?: 'book.price'">
+				book.price
+				</label>
+
+				<div class="input-group mb-2">
+					 <div class="input-group-prepend">
+					 	<div class="input-group-text"
+					 	th:text="${#messages.msgOrNull('page.symbols.currency')} ?: 'page.symbols.currency'">
+					 	page.symbols.currency
+					 	</div>
+					 </div>
+					<input class="form-control" type="text" th:field="*{price}" placeholder="0.00"/>
+				</div>
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.price')} ?: 'book.desc.set.price'">
+				book.desc.set.price
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
 				book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.year')} ?: 'book.desc.example.year'">
-    			book.desc.example.year
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('year')}"
-    			th:errors="*{year}">Invalid year value</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookPrice"
-    			th:text="${#messages.msgOrNull('book.price')} ?: 'book.price'">
-    			book.price
-    			</label>
-
-    			<div class="input-group mb-2">
-    				 <div class="input-group-prepend">
-    				 	<div class="input-group-text"
-    				 	th:text="${#messages.msgOrNull('page.symbols.currency')} ?: 'page.symbols.currency'">
-    				 	page.symbols.currency
-    				 	</div>
-    				 </div>
-    				<input class="form-control" type="text" th:field="*{price}" placeholder="0.00"/>
-    			</div>
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.price')} ?: 'book.desc.set.price'">
-    			book.desc.set.price
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.price')} ?: 'book.desc.example.price'">
-    			book.desc.example.price
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('price')}"
-    			th:errors="*{price}">Invalid price value</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookCategory"
-    			th:text="${#messages.msgOrNull('book.category')} ?: 'book.category'">
-    			book.category
-    			</label>
-    			<select class="form-control" th:field="*{category}">
-    				<option
-    				th:each="category : ${categories}"
-    				th:value="${category.id}"
-    				th:text="${category.name}"
-    				>(obj) category.name</option>
-					<option value="" 
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.price')} ?: 'book.desc.example.price'">
+				book.desc.example.price
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('price')}"
+				th:errors="*{price}">Invalid price value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookCategory"
+				th:text="${#messages.msgOrNull('book.category')} ?: 'book.category'">
+				book.category
+				</label>
+				<select class="form-control" th:field="*{category}">
+					<option
+					th:each="category : ${categories}"
+					th:value="${category.id}"
+					th:text="${category.name}"
+					>(obj) category.name</option>
+					<option value=""
 					th:text="${#messages.msgOrNull('book.null.category')} ?: 'book.null.category'">
 					book.null.category
 					</option>
-    			</select>
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.category')} ?: 'book.desc.set.category'">
-    			book.desc.set.category
-    			</small>
-    		</div>
-
-    		<button class="btn btn-primary" type="submit"
-    		th:text="${#messages.msgOrNull('button.book.add')} ?: 'button.book.add'">
-    		button.book.add
-    		</button>
-    	</form>
-
-    	<br>
-
-    	<a class="btn btn-success" th:href="@{../__${listpage}__}"
+				</select>
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.category')} ?: 'book.desc.set.category'">
+				book.desc.set.category
+				</small>
+			</div>
+
+			<button class="btn btn-primary" type="submit"
+			th:text="${#messages.msgOrNull('button.book.add')} ?: 'button.book.add'">
+			button.book.add
+			</button>
+		</form>
+
+		<br>
+
+		<a class="btn btn-success" th:href="@{../__${listpage}__}"
 		th:text="${#messages.msgOrNull('button.page.list.return')} ?: 'button.page.list.return'">
 		button.page.list.return
 		</a>
 
-    </div>
+	</div>
 </body>
 </html>
diff --git a/bookstore/src/main/resources/templates/bookedit.html b/bookstore/src/main/resources/templates/bookedit.html
index b514377..e888714 100644
--- a/bookstore/src/main/resources/templates/bookedit.html
+++ b/bookstore/src/main/resources/templates/bookedit.html
@@ -1,236 +1,236 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
-    <link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
-    <link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
 
-    <title th:text="${#messages.msgOrNull('page.title.browser.edit')} ?: 'page.title.browser.edit'">
-    page.title.browser.edit
-    </title>
+	<title th:text="${#messages.msgOrNull('page.title.browser.edit')} ?: 'page.title.browser.edit'">
+	page.title.browser.edit
+	</title>
 
 </head>
 <body>
-    <div class="col-md-4 mb-3">
+	<div class="col-md-4 mb-3">
 
-    	<h1 th:text="${#messages.msgOrNull('page.title.webform.edit')} ?: 'page.title.webform.edit'">
-    	page.title.webform.edit
-    	</h1>
+		<h1 th:text="${#messages.msgOrNull('page.title.webform.edit')} ?: 'page.title.webform.edit'">
+		page.title.webform.edit
+		</h1>
 
-    	<form th:object="${book}" action="#" th:action="@{{id}(id=${book.id})}" method="post">
+		<form th:object="${book}" action="#" th:action="@{{id}(id=${book.id})}" method="post">
 
 			<div class="bookform-section">
-			    <div>
-    				<h3 th:text="${#messages.msgOrNull('book.author')} ?: 'book.author'">
-    				book.author
-    				</h3>
-    			</div>
-    			<div class="form-group row">
-    				<div class="col">
-    					<label for="BookAuthor"
-    					th:text="${#messages.msgOrNull('book.author.firstName')} ?: 'book.author.firstName'">
-    					book.author.firstName
-    					</label>
-    					<input class="form-control" type="text" th:field="*{author.firstName}" placeholder="Book author first name"/>
-
-    					<small class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.set.author.firstname')} ?: 'book.desc.set.author.firstname'">
-    					book.desc.set.author.firstname
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-info"
-    					th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    					book.desc.example.headertext
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.example.author.firstname')} ?: 'book.desc.example.author.firstname'">
-    					book.desc.example.author.firstname
-    					</small>
-
-    					<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.firstName')}"
-    					th:errors="*{author.firstName}">Invalid author first name value</div>
-    				</div>
-    			
-    				<div class="col">
-    					<label for="BookAuthor"
-    					th:text="${#messages.msgOrNull('book.author.lastName')} ?: 'book.author.lastName'">
-    					book.author.lastName
-    					</label>
-    					<input class="form-control" type="text" th:field="*{author.lastName}" placeholder="Book author last name"/>
-
-    					<small class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.set.author.lastname')} ?: 'book.desc.set.author.lastname'">
-    					book.desc.set.author.lastname
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-info"
-    					th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    					book.desc.example.headertext
-    					</small>
-
-    					<small style="display: inline-block;" class="form-text text-muted"
-    					th:text="${#messages.msgOrNull('book.desc.example.author.lastname')} ?: 'book.desc.example.author.lastname'">
-    					book.desc.example.author.lastname
-    					</small>
-
-    					<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.lastName')}"
-    					th:errors="*{author.lastName}">Invalid author last name value</div>
-    				</div>	
-    			</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookName"
-    			th:text="${#messages.msgOrNull('book.title')} ?: 'book.title'">
-    			book.title
-    			</label>
-    			<input class="form-control" type="text" th:field="*{title}" placeholder="Book title"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.title')} ?: 'book.desc.set.title'">
-    			book.desc.set.title
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.title')} ?: 'book.desc.example.title'">
-    			book.desc.example.title
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('title')}"
-    			th:errors="*{title}">Invalid title</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookISBN"
-    			th:text="${#messages.msgOrNull('book.isbn')} ?: 'book.isbn'">
-    			book.isbn
-    			</label>
-    			<input class="form-control" type="text" th:field="*{isbn}" placeholder="Book ISBN code"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.isbn')} ?: 'book.desc.set.isbn'">
-    			book.desc.set.isbn
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.isbn')} ?: 'book.desc.example.isbn'">
-    			book.desc.example.isbn
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('isbn')}"
-    			th:errors="*{isbn}">Invalid ISBN code value</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="BookYear"
-    			th:text="${#messages.msgOrNull('book.year')} ?: 'book.year'">
-    			book.year
-    			</label>
-    			<input class="form-control" type="text" th:field="*{year}" placeholder="Book publication year (YYYY)"/>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.year')} ?: 'book.desc.set.year'">
-    			book.desc.set.year
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.year')} ?: 'book.desc.example.year'">
-    			book.desc.example.year
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('year')}"
-    			th:errors="*{year}">Invalid year value</div>
-    		</div>
-
-    		<div class="form-group bookform-section">
-    			<label for="fname"
-    			th:text="${#messages.msgOrNull('book.price')} ?: 'book.price'">
-    			book.price
-    			</label>
-    			<div class="input-group mb-2">
-    				 <div class="input-group-prepend">
-    				 	<div class="input-group-text"
-    				 	th:text="${#messages.msgOrNull('page.symbols.currency')} ?: 'page.symbols.currency'">
-    				 	page.symbols.currency
-    				 	</div>
-    				 </div>
-    				<input class="form-control" type="text" th:field="*{price}" placeholder="Book price"/>
-    			</div>
-
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.price')} ?: 'book.desc.set.price'">
-    			book.desc.set.price
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-info"
-    			th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
-    			book.desc.example.headertext:
-    			</small>
-
-    			<small style="display: inline-block;" class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.example.price')} ?: 'book.desc.example.price'">
-    			book.desc.example.price
-    			</small>
-
-    			<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('price')}"
-    			th:errors="*{price}">Invalid price value</div>
-    		</div>
-    		
-    		<div class="form-group bookform-section">
-    			<label for="BookCategory"
-    			th:text="${#messages.msgOrNull('book.category')} ?: 'book.category'">
-    			book.category
-    			</label>
-    			<select class="form-control" th:field="*{category}" th:selected="*{category}">
-    				<option
-    				th:each="category : ${categories}"
-    				th:value="${category.id}"
-    				th:text="${category.name}"
-    				>(obj) category.name</option>
-					<option value="" 
+				<div>
+					<h3 th:text="${#messages.msgOrNull('book.author')} ?: 'book.author'">
+					book.author
+					</h3>
+				</div>
+				<div class="form-group row">
+					<div class="col">
+						<label for="BookAuthor"
+						th:text="${#messages.msgOrNull('book.author.firstName')} ?: 'book.author.firstName'">
+						book.author.firstName
+						</label>
+						<input class="form-control" type="text" th:field="*{author.firstName}" placeholder="Book author first name"/>
+
+						<small class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.set.author.firstname')} ?: 'book.desc.set.author.firstname'">
+						book.desc.set.author.firstname
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-info"
+						th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+						book.desc.example.headertext
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.example.author.firstname')} ?: 'book.desc.example.author.firstname'">
+						book.desc.example.author.firstname
+						</small>
+
+						<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.firstName')}"
+						th:errors="*{author.firstName}">Invalid author first name value</div>
+					</div>
+
+					<div class="col">
+						<label for="BookAuthor"
+						th:text="${#messages.msgOrNull('book.author.lastName')} ?: 'book.author.lastName'">
+						book.author.lastName
+						</label>
+						<input class="form-control" type="text" th:field="*{author.lastName}" placeholder="Book author last name"/>
+
+						<small class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.set.author.lastname')} ?: 'book.desc.set.author.lastname'">
+						book.desc.set.author.lastname
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-info"
+						th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+						book.desc.example.headertext
+						</small>
+
+						<small style="display: inline-block;" class="form-text text-muted"
+						th:text="${#messages.msgOrNull('book.desc.example.author.lastname')} ?: 'book.desc.example.author.lastname'">
+						book.desc.example.author.lastname
+						</small>
+
+						<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('author.lastName')}"
+						th:errors="*{author.lastName}">Invalid author last name value</div>
+					</div>
+				</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookName"
+				th:text="${#messages.msgOrNull('book.title')} ?: 'book.title'">
+				book.title
+				</label>
+				<input class="form-control" type="text" th:field="*{title}" placeholder="Book title"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.title')} ?: 'book.desc.set.title'">
+				book.desc.set.title
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.title')} ?: 'book.desc.example.title'">
+				book.desc.example.title
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('title')}"
+				th:errors="*{title}">Invalid title</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookISBN"
+				th:text="${#messages.msgOrNull('book.isbn')} ?: 'book.isbn'">
+				book.isbn
+				</label>
+				<input class="form-control" type="text" th:field="*{isbn}" placeholder="Book ISBN code"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.isbn')} ?: 'book.desc.set.isbn'">
+				book.desc.set.isbn
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.isbn')} ?: 'book.desc.example.isbn'">
+				book.desc.example.isbn
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('isbn')}"
+				th:errors="*{isbn}">Invalid ISBN code value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookYear"
+				th:text="${#messages.msgOrNull('book.year')} ?: 'book.year'">
+				book.year
+				</label>
+				<input class="form-control" type="text" th:field="*{year}" placeholder="Book publication year (YYYY)"/>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.year')} ?: 'book.desc.set.year'">
+				book.desc.set.year
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.year')} ?: 'book.desc.example.year'">
+				book.desc.example.year
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('year')}"
+				th:errors="*{year}">Invalid year value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="fname"
+				th:text="${#messages.msgOrNull('book.price')} ?: 'book.price'">
+				book.price
+				</label>
+				<div class="input-group mb-2">
+					 <div class="input-group-prepend">
+					 	<div class="input-group-text"
+					 	th:text="${#messages.msgOrNull('page.symbols.currency')} ?: 'page.symbols.currency'">
+					 	page.symbols.currency
+					 	</div>
+					 </div>
+					<input class="form-control" type="text" th:field="*{price}" placeholder="Book price"/>
+				</div>
+
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.price')} ?: 'book.desc.set.price'">
+				book.desc.set.price
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-info"
+				th:text="(${#messages.msgOrNull('book.desc.example.headertext')} ?: 'book.desc.example.headertext') + ': '">
+				book.desc.example.headertext:
+				</small>
+
+				<small style="display: inline-block;" class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.example.price')} ?: 'book.desc.example.price'">
+				book.desc.example.price
+				</small>
+
+				<div class="alert alert-danger mt-2" th:if="${#fields.hasErrors('price')}"
+				th:errors="*{price}">Invalid price value</div>
+			</div>
+
+			<div class="form-group bookform-section">
+				<label for="BookCategory"
+				th:text="${#messages.msgOrNull('book.category')} ?: 'book.category'">
+				book.category
+				</label>
+				<select class="form-control" th:field="*{category}" th:selected="*{category}">
+					<option
+					th:each="category : ${categories}"
+					th:value="${category.id}"
+					th:text="${category.name}"
+					>(obj) category.name</option>
+					<option value=""
 					th:text="${#messages.msgOrNull('book.null.category')} ?: 'book.null.category'">
 					book.null.category
 					</option>
-    			</select>
+				</select>
 
-    			<small class="form-text text-muted"
-    			th:text="${#messages.msgOrNull('book.desc.set.category')} ?: 'book.desc.set.category'">
-    			book.desc.set.category
-    			</small>
+				<small class="form-text text-muted"
+				th:text="${#messages.msgOrNull('book.desc.set.category')} ?: 'book.desc.set.category'">
+				book.desc.set.category
+				</small>
 
-    		</div>
+			</div>
 
-    		<button class="btn btn-primary" type="submit"
-    		th:text="${#messages.msgOrNull('button.book.edit')} ?: 'button.book.edit'">
-    		button.book.edit
-    		</button>
+			<button class="btn btn-primary" type="submit"
+			th:text="${#messages.msgOrNull('button.book.edit')} ?: 'button.book.edit'">
+			button.book.edit
+			</button>
 
-    	</form>
+		</form>
 
-    	<br>
+		<br>
 
-    	<a class="btn btn-success" th:href="@{../__${listpage}__}"
+		<a class="btn btn-success" th:href="@{../__${listpage}__}"
 		th:text="${#messages.msgOrNull('button.page.list.return')} ?: 'button.page.list.return'">
 		button.page.list.return
 		</a>
 
-    </div>
+	</div>
 </body>
 </html>
diff --git a/bookstore/src/main/resources/templates/booklist.html b/bookstore/src/main/resources/templates/booklist.html
index 6e286f2..ec39bf3 100644
--- a/bookstore/src/main/resources/templates/booklist.html
+++ b/bookstore/src/main/resources/templates/booklist.html
@@ -1,47 +1,47 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 
-<!--/* 
+<!--/*
 
 Idea of the following syntax used in this and other HTML document:
 
-<foo th:text="${#messages.msgOrNull('<key_from_messages.properties>')} ?: 'myThymeleafText'">
-  myHTMLPlainText
-</foo>
+	<foo th:text="${#messages.msgOrNull('<key_from_messages.properties>')} ?: 'myThymeleafText'">
+		myHTMLPlainText
+	</foo>
 
 -> A) In Thymeleaf, we check if a message key exists. In normal cases, a non-existent key is NOT null.
-      Therefore, we use method msgorNull and enforce null value if the message key is not found.
+		Therefore, we use method msgorNull and enforce null value if the message key is not found.
 
 -> B) IF key is null: in section '?: myThymeleafText' we use text 'myThymeleafText' as a replacement
-      value for the HTML tag string value.
+		value for the HTML tag string value.
 
 -> C) The last string value 'myHTMLPlainText' between tags is used if we open plain HTML file without
-      Thymeleaf rendering. This is useful for offline viewing and for developers who want correct file
-      rendering without Java overhead.
+		Thymeleaf rendering. This is useful for offline viewing and for developers who want correct file
+		rendering without Java overhead.
 
 */-->
 
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
-    <!--/*
+	<!--/*
 	CSS href fields:
 
-    Plain HTML rendering gets CSS style files directly from the relative file system path.
-    This is useful for offline viewing and for developers who want correct file
-    rendering without Java overhead.
-    
-    Instead, Thymeleaf template engine gets CSS style files via URI refs. Therefore, values of
-    href and th:href differ. However, both use cases are covered: Thymeleaf & plain HTML.
+	Plain HTML rendering gets CSS style files directly from the relative file system path.
+	This is useful for offline viewing and for developers who want correct file
+	rendering without Java overhead.
 
-    */-->
+	Instead, Thymeleaf template engine gets CSS style files via URI refs. Therefore, values of
+	href and th:href differ. However, both use cases are covered: Thymeleaf & plain HTML.
 
-    <link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
-    <link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+	*/-->
 
-    <title th:text="${#messages.msgOrNull('page.title.browser.list')} ?: 'page.title.browser.list'">
-    page.title.browser.list
-    </title>
+	<link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+
+	<title th:text="${#messages.msgOrNull('page.title.browser.list')} ?: 'page.title.browser.list'">
+	page.title.browser.list
+	</title>
 
 </head>
 <body>
@@ -66,41 +66,41 @@ Idea of the following syntax used in this and other HTML document:
 			</tr>
 
 			<tr th:each="book : ${books}">
-				
+
 				<!--/*
 				Check if book.author exists. If yes, then:
-				  |-> Check if firstName exists. If yes, then:
-				  |     Set author first name
-				  |   else:
-				  |     Set empty string for first name
-                  |----------
-                  |-> Check if lastName exists, if yes, then:
-                  |     Set author last name
-                  |   else:
-                  |     Set empty string for last name
-                ##########
-                else:
-                  |-> Check if book.null.author exists. If yes, then:
-                  |     Get value from book.null.author message key
-                  |   else:
-                  |     Author is string value 'book.null.author'
+					|-> Check if firstName exists. If yes, then:
+					|	 Set author first name
+					|   else:
+					|	 Set empty string for first name
+					|----------
+					|-> Check if lastName exists, if yes, then:
+					|	 Set author last name
+					|   else:
+					|	 Set empty string for last name
+				##########
+				else:
+					|-> Check if book.null.author exists. If yes, then:
+					|	 Get value from book.null.author message key
+					|   else:
+					|	 Author is string value 'book.null.author'
 				*/-->
 
 				<td th:text="${book.author != null} ? ( (${book.author.firstName != null} ? (${book.author.firstName} + ' ') : '') + (${book.author.lastName != null} ? ${book.author.lastName} : '') ) : (${#messages.msgOrNull('book.null.author')} ?: 'book.null.author')">(obj) book.author.firstName (obj) book.author.lastName</td>
-				
+
 				<td th:text="${book.title}">(obj) book.title</td>
 				<td th:text="${book.isbn}">(obj) book.isbn</td>
 				<td th:text="${book.year}">(obj) book.year</td>
-				
-				
+
+
 				<!--/*
 				Check if book.category exists (book entity object). If yes, then:
-				  Get string value of book.category.name (book entity object (method))
+					Get string value of book.category.name (book entity object (method))
 				else:
-				  |-> Check if book.null.category (message key) exists. If yes, then:
-				  |     Get string value of book.null.category message key
-				  |   else:
-				  |     Category is string value 'book.null.category'
+					|-> Check if book.null.category (message key) exists. If yes, then:
+					|	 Get string value of book.null.category message key
+					|   else:
+					|	 Category is string value 'book.null.category'
 				*/-->
 
 				<td th:text="${book.category != null} ? ${book.category.name} : (${#messages.msgOrNull('book.null.category')} ?: 'book.null.category')">(obj) book.category.name</td>
@@ -108,7 +108,7 @@ Idea of the following syntax used in this and other HTML document:
 				<!--/*
 				Get book price with two decimal precision.
 				If price is not found, fall back to string value 0.00.
-				
+
 				Combine with message key 'page.symbols.currency' value.
 				*/-->
 
@@ -132,7 +132,7 @@ Idea of the following syntax used in this and other HTML document:
 					page.text.list.edit
 					</a>
 				</td>
-				
+
 				<td>
 					<a class="btn btn-info"
 					th:href="@{__${restpage}__/book/{id}(id=${book.id})}"
diff --git a/bookstore/src/main/resources/templates/error.html b/bookstore/src/main/resources/templates/error.html
index 86ead1c..bede37a 100644
--- a/bookstore/src/main/resources/templates/error.html
+++ b/bookstore/src/main/resources/templates/error.html
@@ -1,14 +1,14 @@
 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 
-    <link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
-    <link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bookstore.css" th:href="@{../css/bookstore.css}" />
+	<link type="text/css" rel="stylesheet" href="../static/css/bootstrap.min.css" th:href="@{../css/bootstrap.min.css}" />
 
-    <title th:text="${#messages.msgOrNull('page.title.browser.error')} ?: 'page.title.browser.error'">
-    page.title.browser.error
-    </title>
+	<title th:text="${#messages.msgOrNull('page.title.browser.error')} ?: 'page.title.browser.error'">
+	page.title.browser.error
+	</title>
 
 </head>
 <body>
@@ -22,4 +22,4 @@
 		</div>
 	</div>
 </body>
-</html>
\ No newline at end of file
+</html>
