pull-background-displayport-1.html (1670B)
1 <!DOCTYPE html> 2 <html lang="en" reftest-async-scroll> 3 <meta charset="utf-8"> 4 <title>Scrollboxes with uniform backgrounds should pull that color into their contents, even if their contents have a visible region that extends beyond the scrollbox clip</title> 5 6 <style> 7 8 div { 9 min-height: 50px; 10 box-model: border-box; 11 } 12 13 .first, .second { 14 border: 1px solid blue; 15 margin: 50px 0; 16 } 17 18 .border { 19 border: 1px solid black; 20 } 21 22 .scrollable { 23 height: auto; 24 overflow: auto; 25 } 26 27 .scrollarea { 28 width: 5000px; 29 border: none; 30 padding: 10px 0 20px; 31 height: auto; 32 } 33 34 .scrolled { 35 margin-left: 220px; 36 width: 100px; 37 height: 100px; 38 border-color: red; 39 } 40 41 body { 42 margin: 0; 43 padding: 0 100px; 44 height: 3000px; 45 } 46 47 </style> 48 49 <div class="first" reftest-assigned-layer="page-background"> 50 <!-- 51 This is just a regular box, it should end up in the page background layer. 52 --> 53 </div> 54 55 <div class="scrollable border" 56 reftest-displayport-x="0" reftest-displayport-y="0" 57 reftest-displayport-w="2000" reftest-displayport-h="200"> 58 <div class="scrollarea"> 59 <div class="scrolled border reftest-opaque-layer"> 60 <!-- 61 The background of .scrollable is uniform and opaque, 62 .scrolled should be able to pull up that background color and become 63 opaque itself. 64 --> 65 </div> 66 </div> 67 </div> 68 69 <div class="second" reftest-assigned-layer="page-background"> 70 <!-- 71 This should share a layer with .first and the page background. 72 --> 73 </div> 74 75 <script> 76 77 var scrollable = document.querySelector(".scrollable"); 78 79 // Make .scrollable start out with active scrolling. 80 scrollable.scrollLeft = 0; 81 scrollable.scrollLeft = 20; 82 83 </script>