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Diffstat (limited to 'layout/reftests/bugs/552334-1.html')
| -rw-r--r-- | layout/reftests/bugs/552334-1.html | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/layout/reftests/bugs/552334-1.html b/layout/reftests/bugs/552334-1.html new file mode 100644 index 000000000..66f426e09 --- /dev/null +++ b/layout/reftests/bugs/552334-1.html @@ -0,0 +1,26 @@ +<!DOCTYPE html> +<html> + <head> + <style> + div { position: absolute; top: 0; left: 0; width: 100px; height: 100px; } + div.offset { left: 100px; } + div.offset2 { left: 200px; } + </style> + </head> + <body> + <!-- Make sure the difference of the two z-index values overflows a 32-bit + signed int. So set the positive one to 2^30 + 1 and the negative one to + -(2^30 + 1). Then the difference is 2^31 + 2 which is negative when + treated as a 32-bit signed int. --> + <div style="background: green; z-index: 1073741825"></div> + <div style="background: red; z-index: -1073741825"></div> + <!-- Test clamping on the high end by setting the high z-index to + 2^32 + 1 --> + <div class="offset" style="background: green; z-index: 4294967297"></div> + <div class="offset" style="background: red; z-index: 2"></div> + <!-- Test clamping on the low end by setting the low z-index to + -(2^32 + 1) --> + <div class="offset2" style="background: green; z-index: -2"></div> + <div class="offset2" style="background: red; z-index: -4294967297"></div> + </body> +</html> |