5 This tests that a dialog's containing block is in the initial containing block and that it is unaffected by
6 ancestor elements with overflow or opacity.
7 <div style="position: absolute; top: 400px; opacity: 0.3">
8 <dialog id="opaqueDialog" style="position: absolute; top: 250px; left: 0px; background-color: magenta">
9 This dialog should be unaffected by its ancestor with opacity.
12 <div style="position: absolute; overflow: hidden; width: 500px; height: 150px; top: 400px; left: 300px">
13 <dialog id="unclippedDialog" style="position: absolute; top: 200px; left: 0px; height: 100px; background-color: cyan">
14 This dialog should be unaffected by its ancestor with overflow. It should not be clipped.
17 <div style="position: absolute; top: 1000px; left: 1000px; width: 20px;">
18 <dialog id="bottomDialog" style="position: absolute; top: 100px; height: 250px; width: 90%; background-color: yellow">
19 This dialog should be onscreen with a width of 90% of the page. It is the child of an narrow element
20 positioned off screen, but the containing block of a dialog is the initial containing block, so its
21 position and percent lengths are relative to that.
25 document.getElementById('bottomDialog').show();
26 document.getElementById('unclippedDialog').show();
27 document.getElementById('opaqueDialog').show();