testing/web-platform/tests/css/css-writing-modes/slr-alongside-vlr-floats.html


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<!DOCTYPE html>
<html>
  <title>CSS Writing Modes Test: positioning of a sideways-lr block alongside vertical-lr floats</title>

  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="https://www.mozilla.org/">
  <link rel="help" href="https://drafts.csswg.org/css-writing-modes/#block-flow" title="3.2. Block Flow Direction: the writing-mode property">
  <link rel="match" href="slr-alongside-vlr-floats-ref.html">

  <!-- This test is adapted from Gérard Talbot's "ortho-htb-alongside-vrl-floats-014.xht" -->

  <meta content="image" name="flags">
  <meta content="This test verifies that the orange block box, which creates a new block formatting context, should flow next to the earliest float that offers sufficient space in the inline-direction." name="assert">

  <style>
  html {
    writing-mode: vertical-lr;
  }

  div {
    block-size: 100px;
  }

  div#first-olive-float {
    background-color: olive;
    float: left;
    inline-size: 50%;
  }

  div#second-blue-float-with-clear {
    background-color: blue;
    clear: left;
    float: left;
    inline-size: 25%;
  }

  div#orange-bfc {
    background-color: orange;
    inline-size: 75%;
    writing-mode: sideways-lr; /* Same block direction as <html> */
  }
  </style>

  <body>
    <p><img src="support/ortho-htb-alongside-vrl-floats-002-exp-res.png" width="300" height="36" alt="Image download support must be enabled"></p>
    <!--
         The image says:
         Test passes if the orange rectangle
         is below the blue rectangle.
    -->

    <div id="first-olive-float">&nbsp;</div>
    <div id="second-blue-float-with-clear">&nbsp;</div>
    <div id="orange-bfc">&nbsp;</div>
  </body>
</html>