diff --git a/homework3/html/ex3.html b/homework3/html/ex3.html
new file mode 100644
index 00000000..b71f46d0
--- /dev/null
+++ b/homework3/html/ex3.html
@@ -0,0 +1,26 @@
+<style>
+.button {
+   background-color:#0000FF;
+   border:none;
+   color:white;
+   padding: 20px 32px;
+   text-align: center;
+   text-decoration:none;
+   display: inline-block;
+   font-size: 16px;
+   margin: 4px 2px;
+   cursor: wait;
+   }
+   
+   
+   .button2 {background-color:#FF7F50;}
+   .button3 {background-color:#A52A2A;}
+   </style>
+   </head>
+   <body>
+   
+   <button class="button">按鈕1</button>
+   <button class="button button2">按鈕2</button>
+   <button class="button button3">按鈕3</button>
+   </body>
+   </html>
