LayoutTests/imported/w3c/web-platform-tests/css/css-contain/contain-html-t-o-001.html

   1 <!doctype html>
   2 <html lang=en>
   3   <meta charset=utf-8>
   4   <title>CSS-contain test: layout containment on html prevents text-orientation propagation</title>
   5   <link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
   6   <meta name=flags content="">
   7   <meta name=assert content="layout containment on html prevents text-orientation propagation">
   8   <link rel="match" href="reference/contain-body-t-o-001-ref.html">
   9   <link rel=help href="https://drafts.csswg.org/css-contain-1/#contain-property">
  10
  11 <style>
  12 html {
  13     writing-mode: vertical-lr;
  14     direction: rtl;
  15     width: 100vw;
  16     height: 100vh;
  17     overflow: hidden;
  18 }
  19 body {
  20     margin: 0;
  21     border-top: 100px solid red;
  22     border-bottom: 100px solid green;
  23     width: 100vw;
  24     height: 100vh;
  25     text-orientation: upright;
  26 }
  27 html {
  28     contain: layout;
  29 }
  30 p {
  31     margin: auto;
  32     padding: 150px 0;
  33     writing-mode: horizontal-tb;
  34     direction: ltr;
  35 }
  36 </style>
  37
  38 <p>Test passes if there is no red.