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| <!DOCTYPE html>
| <html lang="en">
| <head>
| <meta charset="UTF-8">
| <title>Title</title>
| <style>
| span {
| background-color: yellow;
| }
|
| .grid {
| display: grid;
|
| grid-template-areas:
| "header header header"
| "content content content";
| }
|
| .a {
| grid-area: header;
| }
|
| .b {
| grid-area: 2 / 1 / 2 / 3;
| }
| </style>
| </head>
| <body>
| <div class="grid">
| <span class="a">A</span>
| <span class="b">B</span>
| </div>
| </body>
| </html>
|
|
