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Diffstat (limited to 'layout/reftests/async-scrolling/opaque-fractional-displayport-2.html')
| -rw-r--r-- | layout/reftests/async-scrolling/opaque-fractional-displayport-2.html | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/layout/reftests/async-scrolling/opaque-fractional-displayport-2.html b/layout/reftests/async-scrolling/opaque-fractional-displayport-2.html new file mode 100644 index 0000000000..ddcac0fe85 --- /dev/null +++ b/layout/reftests/async-scrolling/opaque-fractional-displayport-2.html @@ -0,0 +1,56 @@ +<!DOCTYPE html> +<html lang="en" reftest-async-scroll> +<meta charset="utf-8"> +<title>Make sure the scrolled layer is opaque even if the scrolled area is fractional</title> + +<style> + +body { + margin: 0; +} + +.scrollbox { + margin: 50px; + width: 200px; + height: 200px; + overflow: auto; + + /* Make the background "non-uniform" so that the scrolled layer does not + * pull up a background color. */ + background: linear-gradient(to bottom, white, transparent); +} + +.scrolled-contents { + height: 300.2px; + background-color: lime; + box-sizing: border-box; + border: 1px solid lime; +} + +.transparent-overlap-of-fractional-edge { + margin: -10px 20px 0; + height: 40px; + background-color: rgba(0, 0, 255, 0.5); +} + +</style> + +<body> + +<div class="scrollbox" + reftest-displayport-x="0" reftest-displayport-y="-100.2" + reftest-displayport-w="200" reftest-displayport-h="300.2" + reftest-async-scroll-x="0" reftest-async-scroll-y="0"> + <div class="scrolled-contents"> + <div class="transparent-overlap-of-fractional-edge reftest-opaque-layer"> + <!-- This element has the magic "reftest-opaque-layer" class which + constitutes the actual test here. --> + </div> + </div> +</div> + +<script> + +document.querySelector(".scrollbox").scrollTop = 100000; /* will end up at 100.2 */ + +</script> |