| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>CSS Test: 'contain: layout' should make elements behave as if they have no baseline</title> |
| <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> |
| <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-layout"> |
| <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#valdef-align-items-baseline"> |
| <link rel="match" href="contain-layout-suppress-baseline-001-ref.html"> |
| <style> |
| .flexBaselineCheck { |
| display: flex; |
| border: 1px solid black; |
| height: 100px; |
| } |
| .flexBaselineCheck > * { |
| contain: layout; |
| border: 2px solid teal; |
| align-self: baseline; |
| } |
| canvas { |
| background: purple; |
| width: 20px; |
| height: 80px; |
| box-sizing: border-box; |
| } |
| .flex { |
| display: flex; |
| } |
| .grid { |
| display: grid; |
| } |
| .multicol { |
| column-count: 2; |
| } |
| </style> |
| </head> |
| <body> |
| <div class="flexBaselineCheck"> |
| <!-- This canvas just exists to establish a precise, far-down baseline |
| alignment position: --> |
| <canvas></canvas> |
| <!-- "contain:layout" should force all the elements below to behave as if |
| they have no baseline. That means they all should *synthesize* a |
| baseline from their border-box edge, in order to participate in flex |
| item baseline alignment (to honor the outer flex container's |
| "align-items:baseline"). So, the expectation here is that all of these |
| elements' border-bottom edges should be aligned. --> |
| <div>block</div> |
| <fieldset><legend>leg</legend>fieldset</fieldset> |
| <div class="flex">flex</div> |
| <div class="grid">grid</div> |
| <div class="multicol">multi<br>col</div> |
| <details open><summary>summary</summary>details</details> |
| </div> |
| </body> |
| </html> |
