margin-collapse-vlr-009.xht (2037B)
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 2 3 <html xmlns="http://www.w3.org/1999/xhtml"> 4 5 <head> 6 7 <title>CSS Writing Modes Test: 'vertical-lr' and margin collapsing - adjoining margins of non-siblings or ancestors</title> 8 9 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> 10 <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#logical-direction-layout" title="7.4 Flow-Relative Mappings" /> 11 <link rel="match" href="../reference/ref-filled-green-100px-square.xht" /> 12 13 <!-- 14 Test adapted from 15 http://test.csswg.org/suites/css2.1/nightly-unstable/html4/margin-collapse-005.htm 16 17 " 18 The margin collapsing rules apply exactly with the block-start margin substituted for the top margin and the block-end margin substituted for the bottom margin. 19 " 20 --> 21 22 <meta content="ahem image" name="flags" /> 23 <meta name="assert" content="This test checks that adjoining margin-end and margin-start boxes generated by elements, that are not related by siblings or ancestors, collapse in 'vertical-lr' writing-mode." /> 24 25 <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" /> 26 <style type="text/css"><![CDATA[ 27 div 28 { 29 font: 25px/1em Ahem; 30 height: 4em; 31 } 32 33 div#wrapper 34 { 35 background: red url("support/margin-collapse-2em-space-wm-vert.png"); 36 width: 4em; 37 writing-mode: vertical-lr; 38 } 39 40 div#leftmost 41 { 42 background-color: green; 43 margin-right: 2em; /* block-end margin of sub-block of 1st block */ 44 width: 1em; 45 } 46 47 div#rightmost 48 { 49 background-color: green; 50 margin-left: 1em; /* block-start margin of following sibling block */ 51 width: 1em; 52 } 53 ]]></style> 54 55 </head> 56 57 <body> 58 59 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> 60 61 <div id="wrapper"> 62 <div> 63 <div id="leftmost"></div> 64 </div> 65 <div id="rightmost"></div> 66 </div> 67 68 </body> 69 </html>