Blitz - WPT: absolute-replaced-height-031.xht

wpt / css / CSS2 / positioning / absolute-replaced-height-031.xht

/css/CSS2/positioning/absolute-replaced-height-031.xht

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>CSS Test: Absolutely positioned inline replaced element with intrinsic ratio, 'height' set to 'auto' and over-constrained values</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-09-05 -->
        <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-replaced-height" />
		<link rel="match" href="absolute-replaced-height-010-ref.xht" />

        <meta name="flags" content="image" />
        <meta name="assert" content="The 'height' is the used width divided by the intrinsic ratio when an absolutely positioned replaced element has an intrinsic ratio, 'height' is set to 'auto', with over-constrained values solves for 'bottom'." />
        <style type="text/css">
            #div1
            {
                border-top: solid black;
                position: relative;
            }
            div div
            {
                background: blue;
                height: 1in;
                left: 1in;
                position: absolute;
                top: 1in;
            }
            img
            {
                bottom: 1in;
                height: auto;
                margin-bottom: 0.5in;
                margin-top: 0.5in;
                position: absolute;
                top: 0.5in;
            }
            div div, img
            {
                width: 1in;
            }

	/*

  			0.5in : 'top'
		+
  			0.5in : 'margin-top'
		+
  			0     : 'border-top-width'
		+
  			0     : 'padding-top'
		+
  			1in   : 'height' (used width) / (intrinsic ratio)
		+
  			0     : 'padding-bottom'
		+
  			0     : 'border-bottom-width'
		+
  			0.5in : 'margin-bottom'
		+
  			1in   : 'bottom'
		===========
  			436px  : height of containing block (0px)

		So, bottom has to be ignored and forced to have the value that
		will balance the equation. So, this brings up

  			0.5in : 'top'
		+
  			0.5in : 'margin-top'
		+
  			0     : 'border-top-width'
		+
  			0     : 'padding-top'
		+
  			1in   : 'height' (used width) / (intrinsic ratio)
		+
  			0     : 'padding-bottom'
		+
  			0     : 'border-bottom-width'
		+
  			0.5in : 'margin-bottom'
		+
  			(solve): 'bottom'
		===================
 			240px  : height of containing block (0px)

  			So the solved bottom value should be -240px
	*/
        </style>
    </head>
    <body>
        <p>Test passes if there is a filled blue rectangle and it does not touch the black line.</p>
        <div id="div1">
            <img alt="blue 15x15" src="support/blue15x15.png" />
            <div></div>
        </div>
    </body>
</html>

/css/CSS2/positioning/absolute-replaced-height-010-ref.xht

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <title>CSS Reftest Reference</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />

  <style type="text/css"><![CDATA[
  div
  {
  border-top: black solid medium;
  margin-bottom: 96px;
  }

  div + div
  {
  background-color: blue;
  border-top: none 0px;
  height: 96px;
  width: 192px;
  }
  ]]></style>

 </head>

 <body>

  <p>Test passes if there is a filled blue rectangle and it does not touch the black line.</p>

  <div></div>

  <div></div>

 </body>
</html>