| Index: LayoutTests/fast/css/sticky/sticky-grid.html | 
| diff --git a/LayoutTests/fast/css/sticky/sticky-grid.html b/LayoutTests/fast/css/sticky/sticky-grid.html | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..527dabb1581ce636e4e8b9be31e01dcbb32494f9 | 
| --- /dev/null | 
| +++ b/LayoutTests/fast/css/sticky/sticky-grid.html | 
| @@ -0,0 +1,97 @@ | 
| +<!DOCTYPE html> | 
| +<script> | 
| +if (window.internals) { | 
| +    internals.settings.setCSSStickyPositionEnabled(true); | 
| +} | 
| +</script> | 
| + | 
| +<html> | 
| +<head> | 
| +<style> | 
| +    body { | 
| +        margin: 0; | 
| +        width: 2000px; | 
| +        overflow: hidden; /* hide scrollbars */ | 
| +    } | 
| + | 
| +    p { | 
| +        position: relative; | 
| +        left: 100px; | 
| +    } | 
| + | 
| +    .group { | 
| +        position: relative; | 
| +        width: 500px; | 
| +        height: 200px; | 
| +    } | 
| + | 
| +    .grid-container { | 
| +        display: grid; | 
| +        grid-template-columns: 50% 50%; | 
| +        grid-template-rows: 100%; | 
| +        width: 200px; | 
| +        height: 180px; | 
| +        outline: 2px solid black; | 
| +    } | 
| + | 
| +    .box { | 
| +        width: 100px; | 
| +        height: 180px; | 
| +    } | 
| + | 
| +    .grid-item { | 
| +        width: 100%; | 
| +        height: 100%; | 
| +    } | 
| + | 
| +    .sticky { | 
| +        position: sticky; | 
| +        left: 100px; | 
| +        background-color: green; | 
| +    } | 
| + | 
| +    .indicator { | 
| +        position: absolute; | 
| +        top: 0; | 
| +        left: 0; | 
| +        background-color: red; | 
| +    } | 
| +</style> | 
| +<script> | 
| +    function doTest() | 
| +    { | 
| +        window.scrollTo(100, 0); | 
| +    } | 
| +    window.addEventListener('load', doTest, false); | 
| +</script> | 
| +</head> | 
| +<body> | 
| +    <p>This test checks the behavior of position:sticky with grid items. | 
| +  There should be no red.</p> | 
| + | 
| +    <div class="group" style="left: 100px"> | 
| +        <div class="indicator box" style="left: 100px;"></div> | 
| +        <div class="grid-container"> | 
| +          <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></div> | 
| +          <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
| +        </div> | 
| +    </div> | 
| + | 
| +    <div class="group" style="left: 150px"> | 
| +        <div class="indicator box" style="left: 50px;"></div> | 
| +        <div class="grid-container" style="left: 100px"> | 
| +          <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></div> | 
| +          <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
| +        </div> | 
| +    </div> | 
| + | 
| +    <div class="group" style="left: 200px"> | 
| +        <div class="indicator box" style="left: 0px;"></div> | 
| +        <div class="grid-container" style="left: 100px"> | 
| +          <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></div> | 
| +          <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
| +        </div> | 
| +    </div> | 
| + | 
| +</body> | 
| +</html> | 
|  |