Update index.html

Author: TsingZ0

docs/index.html

@@ -84,6 +84,12 @@
             margin-bottom: 1rem;
             z-index: 1;
         }
+        .hero h2 {
+            color: #6DA945;
+            font-size: 2rem;
+            margin-bottom: 1rem;
+            z-index: 1;
+        }
         .hero p {
             color: #6DA945;
             font-size: 1.5rem;
@@ -219,8 +225,9 @@ <h1><a href="index.html" id="PFLlib">PFLlib</a></h1>
     </div>
     <div class="hero">
         <div>
-            <h1>PFLlib is all you need</h1>
-            <p>Master Federated Learning in <strong>2 Hours</strong>—Run It on Your PC! <br />A <strong>beginner-friendly</strong> and comprehensive personalized federated learning <strong>library</strong> and <strong>benchmark platform</strong>. <br /> <strong>38</strong> traditional FL (tFL) or personalized FL (pFL) algorithms,  <strong>3</strong> scenarios, and <strong>24</strong> datasets.</p>
+            <h1>Pfllib Is All You Need</h1>
+            <h2>Master Federated Learning in <strong>2 Hours</strong>—Run It on Your PC!</h2>
+            <p>A <strong>beginner-friendly</strong> and comprehensive personalized federated learning <strong>library</strong> and <strong>benchmark platform</strong>. <br /> <strong>38</strong> traditional FL (tFL) or personalized FL (pFL) algorithms,  <strong>3</strong> scenarios, and <strong>24</strong> datasets.</p>
             <button onclick="window.location.href='docs.html'">Get Started</button>
         </div>
     </div>