Fix: Refactored Code

Author: hoangsonww

src/html/about.html

@@ -30,6 +30,9 @@
         <h2>About The Event Horizon App</h2>
       </div>
     </header>
+    <h2 id="about-text" style="text-align: center; margin-top: 30px">
+        <strong>Thank you for visiting The EventHorizon App!</strong>
+    </h2>
     <p id="about-text" style="text-align: center">
         This app is your ultimate countdown timer that allows users to anticipate and count down to major events in their lives. Users can select from predefined events or create custom events, setting both the event name and date.
     </p>
@@ -46,7 +49,7 @@ <h2>About The Event Horizon App</h2>
         <strong>Created by Son Nguyen Hoang in October 2023.</strong>
     </p>
 
-    <section class="additional-apps-section">
+    <section class="additional-apps-section" style="margin-top: 40px">
         <h2>Explore Our Other Apps</h2>
 
             <div class="app">