fix

2-ui/4-forms-controls/2-focus-blur/article.md

@@ -30,6 +30,7 @@ In the example below:
 </style>
 
 Your email please: <input type="email" id="input">
+<input type="text" style="width:200px" placeholder="make email invalid and try to focus here">
 
 <div id="error"></div>