2 <p>Add a spanner inside a fixed-size clipped block inside a multicol container. It should not be
3 affected by the clipping, since the containing block of a spanner is the multicol
4 container. This also tests that we don't perform any optimized subtree layout operations
5 incompatible with multicol (which would typically cause assertion failures).
</p>
6 <p>You should see the word
"PASS" below, and nothing else (no red, no
"FAIL").
</p>
7 <div style=
"-webkit-columns:2; width:20em; height:10em; line-height:2em; overflow:hidden;">
8 <div style=
"width:5em; height:2em; overflow:hidden;">
10 <div id=
"spanner" style=
"-webkit-column-span:all; display:none;">PASS
</div>
11 <span style=
"background:red;">FAIL
</span>
15 document
.body
.offsetTop
;
16 document
.getElementById("spanner").style
.display
= "block";