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|  | 1 <!DOCTYPE html> | 
|  | 2 <script> | 
|  | 3 if (window.internals) { | 
|  | 4     internals.settings.setCSSStickyPositionEnabled(true); | 
|  | 5 } | 
|  | 6 </script> | 
|  | 7 | 
|  | 8 <html> | 
|  | 9 <head> | 
|  | 10 <style> | 
|  | 11     body { | 
|  | 12         margin: 0; | 
|  | 13         width: 2000px; | 
|  | 14         overflow: hidden; /* hide scrollbars */ | 
|  | 15     } | 
|  | 16 | 
|  | 17     p { | 
|  | 18         position: relative; | 
|  | 19         left: 100px; | 
|  | 20     } | 
|  | 21 | 
|  | 22     .group { | 
|  | 23         position: relative; | 
|  | 24         width: 500px; | 
|  | 25         height: 200px; | 
|  | 26     } | 
|  | 27 | 
|  | 28     .grid-container { | 
|  | 29         display: grid; | 
|  | 30         grid-template-columns: 50% 50%; | 
|  | 31         grid-template-rows: 100%; | 
|  | 32         width: 200px; | 
|  | 33         height: 180px; | 
|  | 34         outline: 2px solid black; | 
|  | 35     } | 
|  | 36 | 
|  | 37     .box { | 
|  | 38         width: 100px; | 
|  | 39         height: 180px; | 
|  | 40     } | 
|  | 41 | 
|  | 42     .grid-item { | 
|  | 43         width: 100%; | 
|  | 44         height: 100%; | 
|  | 45     } | 
|  | 46 | 
|  | 47     .sticky { | 
|  | 48         position: sticky; | 
|  | 49         left: 100px; | 
|  | 50         background-color: green; | 
|  | 51     } | 
|  | 52 | 
|  | 53     .indicator { | 
|  | 54         position: absolute; | 
|  | 55         top: 0; | 
|  | 56         left: 0; | 
|  | 57         background-color: red; | 
|  | 58     } | 
|  | 59 </style> | 
|  | 60 <script> | 
|  | 61     function doTest() | 
|  | 62     { | 
|  | 63         window.scrollTo(100, 0); | 
|  | 64     } | 
|  | 65     window.addEventListener('load', doTest, false); | 
|  | 66 </script> | 
|  | 67 </head> | 
|  | 68 <body> | 
|  | 69     <p>This test checks the behavior of position:sticky with grid items. | 
|  | 70   There should be no red.</p> | 
|  | 71 | 
|  | 72     <div class="group" style="left: 100px"> | 
|  | 73         <div class="indicator box" style="left: 100px;"></div> | 
|  | 74         <div class="grid-container"> | 
|  | 75           <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></d
    iv> | 
|  | 76           <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
|  | 77         </div> | 
|  | 78     </div> | 
|  | 79 | 
|  | 80     <div class="group" style="left: 150px"> | 
|  | 81         <div class="indicator box" style="left: 50px;"></div> | 
|  | 82         <div class="grid-container" style="left: 100px"> | 
|  | 83           <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></d
    iv> | 
|  | 84           <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
|  | 85         </div> | 
|  | 86     </div> | 
|  | 87 | 
|  | 88     <div class="group" style="left: 200px"> | 
|  | 89         <div class="indicator box" style="left: 0px;"></div> | 
|  | 90         <div class="grid-container" style="left: 100px"> | 
|  | 91           <div class="sticky grid-item" style="grid-column: 1; grid-row: 1;"></d
    iv> | 
|  | 92           <div class="grid-item" style="grid-column: 2; grid-row: 1;"></div> | 
|  | 93         </div> | 
|  | 94     </div> | 
|  | 95 | 
|  | 96 </body> | 
|  | 97 </html> | 
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