gecko-dev/layout/reftests/xul/object-fit-cover-png-001.xhtml

<?xml version="1.0"?>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <style xmlns="http://www.w3.org/1999/xhtml"><![CDATA[
      window { padding: 8px; }
      image {
        border: 1px dashed gray;
        padding: 1px;
        object-fit: cover;
        image-rendering: -moz-crisp-edges;
        float: left;
      }

      .bigWide {
        width: 52px;
        height: 36px;
      }
      .bigTall {
        width: 36px;
        height: 52px;
      }
      .small {
        width: 12px;
        height: 12px;
      }

      br { clear: both; }

      .tr { object-position: top right }
      .bl { object-position: bottom left }
      .tl { object-position: top 25% left 25% }
      .br { object-position: bottom 1px right 2px }

      .tc { object-position: top 3px left 50% }
      .cr { object-position: top 50% right 25% }
  ]]></style>
  <hbox>
    <!-- big/wide: -->
    <image src="colors-16x8.png" class="bigWide tr"/>
    <image src="colors-16x8.png" class="bigWide bl"/>
    <image src="colors-16x8.png" class="bigWide tl"/>
    <image src="colors-16x8.png" class="bigWide br"/>
    <image src="colors-16x8.png" class="bigWide tc"/>
    <image src="colors-16x8.png" class="bigWide cr"/>
    <image src="colors-16x8.png" class="bigWide"/>
  </hbox>
  <hbox>
    <!-- big/tall: -->
    <image src="colors-16x8.png" class="bigTall tr"/>
    <image src="colors-16x8.png" class="bigTall bl"/>
    <image src="colors-16x8.png" class="bigTall tl"/>
    <image src="colors-16x8.png" class="bigTall br"/>
    <image src="colors-16x8.png" class="bigTall tc"/>
    <image src="colors-16x8.png" class="bigTall cr"/>
    <image src="colors-16x8.png" class="bigTall"/>
  </hbox>
  <hbox>
    <!-- small: -->
    <image src="colors-16x8.png" class="small tr"/>
    <image src="colors-16x8.png" class="small bl"/>
    <image src="colors-16x8.png" class="small tl"/>
    <image src="colors-16x8.png" class="small br"/>
    <image src="colors-16x8.png" class="small tc"/>
    <image src="colors-16x8.png" class="small cr"/>
    <image src="colors-16x8.png" class="small"/>
  </hbox>
</window>