Add css validation icon display

Author: russom

Form-Controls/index.html

@@ -4,7 +4,7 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <title>My form exercise</title>
-     <link rel="stylesheet" href="styles.css" />
+    <link rel="stylesheet" href="styles.css" />
     <meta name="description" content="" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
   </head>
@@ -68,6 +68,15 @@ <h1>Product Pick</h1>
     <footer>
       <!-- change to your name-->
       <p>By Russom Gebremeskel</p>
+      <p>
+        <a href="https://jigsaw.w3.org/css-validator/check/referer">
+          <img
+            style="border: 0; width: 88px; height: 31px"
+            src="https://jigsaw.w3.org/css-validator/images/vcss-blue"
+            alt="Valid CSS!"
+          />
+        </a>
+      </p>
     </footer>
   </body>
 </html>