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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html b/testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html new file mode 100644 index 0000000000..4b21404a9b --- /dev/null +++ b/testing/web-platform/tests/css/css-flexbox/flexbox-items-as-stacking-contexts-002.html @@ -0,0 +1,90 @@ +<!DOCTYPE html> +<!-- + Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ +--> +<!-- This testcase checks flex items are painted atomically. In particular, + if one item has content that overflows into the region of another item, + then one item is painted "behind" the other; there shouldn't normally + any interleaving of backgrounds and content between the two items. + + This testcase also tests some special cases that will change the paint + ordering - specifically, the properties "position", "z-index", and + "order" on flex items. + --> +<!-- This was resolved by the CSSWG in April 2013: + http://krijnhoetmer.nl/irc-logs/css/20130403#l-455 --> +<html> +<head> + <title>CSS Test: Testing that flex items paint as pseudo-stacking contexts (like inline-blocks): atomically, in the absence of 'z-index' on descendants</title> + <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> + <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#painting"> + <link rel="match" href="flexbox-items-as-stacking-contexts-002-ref.html"> + <style> + body { font: 10px sans-serif } + .flexContainer { + background: orange; + display: flex; + justify-content: space-between; + width: 70px; + padding: 2px; + margin-bottom: 2px; + } + .item1 { + background: lightblue; + width: 30px; + min-width: 0; /* disable default min-width:auto behavior */ + } + .item2 { + background: yellow; + width: 30px; + min-width: 0; /* disable default min-width:auto behavior */ + } + </style> +</head> +<body> + <!-- This container has two flex items, the first of which has content + sticking out & overlapping the second. If they're painting atomically + (and in the right order), the second item's background should cover the + first item's overflowing content. --> + <div class="flexContainer" + ><div class="item1">ThisIsALongUnbrokenString</div + ><div class="item2">HereIsSomeMoreLongText</div + ></div> + + <!-- Now, the first item is relatively positioned, which should make it paint + on top of everything. --> + <div class="flexContainer" + ><div class="item1" style="position:relative">ThisIsALongUnbrokenString</div + ><div class="item2">HereIsSomeMoreLongText</div + ></div> + + <!-- Now, the first item is has "z-index" set, which should make it paint on + top of everything. --> + <div class="flexContainer" + ><div class="item1" style="z-index: 1">ThisIsALongUnbrokenString</div + ><div class="item2">HereIsSomeMoreLongText</div + ></div> + + <!-- Now, the first item has "order" set to a higher value than default, + which should make it paint on top (and at the far right) --> + <div class="flexContainer" + ><div class="item1" style="order: 1">ThisIsALongUnbrokenString</div + ><div class="item2">HereIsSomeMoreLongText</div + ></div> + + <!-- And for thoroughness, let's set "order" to a lower value than default, + on the second item. (Should render the same as previous example.) --> + <div class="flexContainer" + ><div class="item1">ThisIsALongUnbrokenString</div + ><div class="item2" style="order: -1">HereIsSomeMoreLongText</div + ></div> + + <!-- ...but if we relatively position that second item, it should paint + on top again, despite its low "order" value. --> + <div class="flexContainer" + ><div class="item1">ThisIsALongUnbrokenString</div + ><div class="item2" style="order: -1; position: relative">HereIsSomeMoreLongText</div + ></div> +</body> +</html> |