Home > Article > Web Front-end > What CSS does: Invalid selectors

What CSS does: Invalid selectors

王林forward: 2023-09-06 12:29:06730browse

Use the CSS :invalid selector to style all elements with invalid values. You can try running the following code to achieve this: invalid selector

Example

Live Demo

<!DOCTYPE html>
<html>
   <head>
      <style>
         input:invalid {
            background: red;
         }
      </style>
   </head>
   <body>
      <h2>Heading</h2>
         <input type = "email" value = "InvalidEmail">
         <p>The style (red color background) appears if you type an irrelevant/ invalid email address.</p>
   </body>
</html>

The above is the detailed content of What CSS does: Invalid selectors. For more information, please follow other related articles on the PHP Chinese website!

Statement：

This article is reproduced at:tutorialspoint.com. If there is any infringement, please contact admin@php.cn delete

Previous article：How to create numbers using the inverse increment property in CSS?Next article：How to create numbers using the inverse increment property in CSS?

See more

What CSS does: Invalid selectors

Example

Related articles