| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>CSS Containment Test: Layout containment on button</title> |
| <link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-layout"> |
| <link rel="help" href="https://drafts.csswg.org/css2/visudet.html#propdef-vertical-align"> |
| <link rel="match" href="reference/contain-layout-button-001-ref.html"> |
| <meta name=assert content="Layout containment does apply to buttons, thus their baseline is their margin-bottom edge."> |
| <style> |
| button { |
| border: 5px solid green; |
| padding: 0; |
| /* We use a nonzero margin-bottom to be sure we're synthesizing a baseline |
| from the margin-box rather than from the border-box: */ |
| margin-bottom: 2px; |
| contain: layout; |
| color: transparent; |
| width: 0; |
| height: 0; |
| } |
| </style> |
| |
| <p>This test passes if it has the same output as the reference. You see the word "before", a 10px green square aligned 2px above the text's baseline, and then the word "after".</p> |
| before<button>b</button>after |
