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| <!DOCTYPE html>
| <html lang="en">
| <head>
| <meta charset="UTF-8">
| <title>Title</title>
| <style>
| .foo {
| width: 100%;
| background-color: red;
| color: white;
| transition: width 1s ease-out;
| }
|
| .foo:hover {
| width: 50%;
| }
| </style>
| </head>
| <body>
| <div class="foo">
| Hover me!
| </div>
| </body>
| </html>
|
|
