updated title

Author: tsung-wei-huang

css/tf.css

@@ -8,7 +8,8 @@ body {
 }
 
 .jumbotron-title {
-  padding: 3rem;
+  padding-top: 3rem;
+  padding-bottom: 2rem;
   background: #000064;  /* old browsers fallback color*/
   background: -webkit-linear-gradient(to left, #1BADD8, #00003E);
   background: linear-gradient(to left, #1BADD8, #00003E);

index.html

@@ -71,15 +71,15 @@
     <!-- Main jumbotron for a primary marketing message or call to action -->
     <div class="jumbotron jumbotron-fluid jumbotron-title">
       <div class="container">
-        <h1 class="display-3"><b>Taskflow </b><img src="images/logo.png" alt="Logo" style="width:3rem;"></h1>
+        <h1><b>Taskflow </b><img src="images/logo.png" alt="Logo" style="width:3rem;"></h1>
         <blockquote class="blockquote">
           <p class="mb-0">A General-purpose Parallel and Heterogeneous Task Programming System</p>
           <footer class="blockquote-footer"><cite style="color:#f5f5f5">write parallel programs with high performance and simultaneous high productivity</cite></footer>
         </blockquote>
 
-        <p><a class="btn btn-primary btn-lg mr-2" href="https://github.com/taskflow/taskflow" role="button">GitHub &raquo;</a>
-        <a class="btn btn-info btn-lg mr-2" href="https://taskflow.github.io/taskflow/index.html" role="button">Documentation &raquo;</a>
-        <a class="btn btn-warning btn-lg" href="https://taskflow.github.io/taskflow/Releases.html" role="button">Release Notes &raquo;</a></p>
+        <p><a class="btn btn-primary btn-lg mr-2 mt-2" href="https://github.com/taskflow/taskflow" role="button">GitHub &raquo;</a>
+        <a class="btn btn-info btn-lg mr-2 mt-2" href="https://taskflow.github.io/taskflow/index.html" role="button">Documentation &raquo;</a>
+        <a class="btn btn-warning btn-lg mr-2 mt-2" href="https://taskflow.github.io/taskflow/Releases.html" role="button">Release Notes &raquo;</a></p>
       </div>
     </div>