| <!DOCTYPE html> |
| <title>Tests fallback positions that overflow the inset-modified containing block regardless of scrolling</title> |
| <link rel="help" href="https://drafts.csswg.org/css-anchor-1/#fallback"> |
| <link rel="author" href="mailto:[email protected]"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/check-layout-th.js"></script> |
| <script src="support/test-common.js"></script> |
| <style> |
| body { margin: 0; } |
| .ltr { direction: ltr; } |
| .rtl { direction: rtl; } |
| .vrl { writing-mode: vertical-rl; } |
| .vlr { writing-mode: vertical-lr; } |
| |
| .cb { |
| width: 200px; |
| height: 200px; |
| transform: scale(1); |
| } |
| |
| .spacer { |
| block-size: 50px; |
| } |
| |
| .anchor { |
| width: 100px; |
| height: 100px; |
| margin-inline-start: 50px; |
| background: orange; |
| anchor-name: --a; |
| } |
| |
| .anchored { |
| position: absolute; |
| width: 50px; |
| height: 50px; |
| background: lime; |
| } |
| |
| /* Used on a element whose block and inline axes are the same with its |
| containing block, so that the first two positions will exceed the end edges |
| of the IMCB, and the last position will be used. */ |
| .exceeds-end { |
| position-try-fallbacks: --exceeds-end-1, --exceeds-end-2; |
| left: 0; |
| right: anchor(--a left); |
| width: 100px; |
| } |
| |
| @position-try --exceeds-end-1 { |
| inset: auto; |
| top: 0; |
| bottom: anchor(--a top); |
| width: auto; |
| height: 100px; |
| } |
| |
| @position-try --exceeds-end-2 { |
| inset: auto; |
| top: 11px; |
| left: 22px; |
| width: auto; |
| height: auto; |
| } |
| |
| /* Used on a element whose block and inline axes are in the opposite directions |
| of its containing block, so that the first two positions will exceed the |
| start edges of the IMCB, and the last position will be used. */ |
| .exceeds-start { |
| position-try-fallbacks: --exceeds-start-1, --exceeds-start-2; |
| bottom: 0; |
| top: anchor(--a bottom); |
| height: 100px; |
| } |
| |
| @position-try --exceeds-start-1 { |
| inset: auto; |
| right: 0; |
| left: anchor(--a right); |
| width: 100px; |
| height: auto; |
| } |
| |
| @position-try --exceeds-start-2 { |
| inset: auto; |
| top: 11px; |
| left: 22px; |
| height: auto; |
| } |
| |
| /* Both inset sides are `auto`, but the size is too big to fit in the containing |
| block. */ |
| .exceeds-size { |
| position-try-fallbacks: --exceeds-size-1, --exceeds-size-2; |
| top: anchor(--a bottom); |
| left: auto; |
| right: auto; |
| width: 300px; |
| } |
| |
| @position-try --exceeds-size-1 { |
| inset: auto; |
| left: anchor(--a right); |
| width: auto; |
| height: 300px; |
| } |
| |
| @position-try --exceeds-size-2 { |
| inset: auto; |
| width: auto; |
| top: 11px; |
| left: 22px; |
| } |
| </style> |
| |
| <body onload="checkLayoutForAnchorPos('.anchored')"> |
| <div class=cb> |
| <div class=spacer></div> |
| <div class=anchor></div> |
| <div class="anchored exceeds-end" |
| data-offset-x=22 data-offset-y=11></div> |
| </div> |
| |
| <div class="cb rtl vrl"> |
| <div class=spacer></div> |
| <div class=anchor></div> |
| <div class="anchored ltr vlr exceeds-start" |
| data-offset-x=22 data-offset-y=11></div> |
| </div> |
| |
| <div class="cb"> |
| <div class=spacer></div> |
| <div class=anchor></div> |
| <div class="anchored exceeds-size" |
| data-offset-x=22 data-offset-y=11></div> |
| </div> |
| </body> |
