fixed code styling and typos

bellapanghulan_reading/bookshelf/templates/bookshelf/home.html

@@ -7,7 +7,7 @@
 
 {% block header %}
     <h2> Welcome to <span class="highlight">Bella's</span></h2>
-    <h2> Database of Favorite Books & Authors </h2>
+    <h2> Database of Favorite Books & Authors!</h2>
 {% endblock %}
 
 {% block body %}

bellapanghulan_reading/static/stylesheets/author_details.css

@@ -70,4 +70,4 @@ li:hover {
       padding: 0.2rem;
       min-width: 5rem;
     }
-  }
+}
\ No newline at end of file

bellapanghulan_reading/static/stylesheets/book_details.css

 body {
     padding: 3.5rem;
 }
+
 h2 {
     text-transform: uppercase;
     font-size: 30px;
@@ -21,6 +22,7 @@ h2 {
     background-color: #b39aff;
     border-radius: 0.4rem;
 }
+
 h3 {
     font-size: medium;
     display: block;
@@ -32,4 +34,4 @@ h3 {
       font-size: small;
       padding: 0.2rem;
     }
-  }
+}
\ No newline at end of file