Index: third_party/WebKit/LayoutTests/imported/csswg-test/vendor-imports/mozilla/mozilla-central-reftests/flexbox/flexbox-items-as-stacking-contexts-002.html |
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+<!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> |