margin-collapse-clear-016.xht (1837B)
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 Test: Margin collapsing - margins of a 'collapsed through' box without clearance can collapse with parent block's bottom margin</title> 8 9 <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" /> 10 <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> 11 <link rel="author" title="Daniel Schattenkirchner" href="mailto:crazy-daniel@gmx.de" /> 12 <link rel="match" href="margin-collapse-clear-016-ref.xht" /> 13 14 <meta content="An element that does not have clearance applied to it can collapse its top margin with its parent block's bottom margin. Margins of a 'collapsed through' box without clearance applied to it can collapse with its parent block's bottom margin. An element with clear set to it (to other than 'none') can only create a clearance if and when there is a preceding floated block." name="assert" /> 15 16 <style type="text/css"><![CDATA[ 17 body 18 { 19 background-color: white; 20 } 21 22 #parent-block 23 { 24 background-color: red; 25 margin-bottom: 0px; 26 } 27 28 #sibling 29 { 30 background-color: green; 31 height: 100px; 32 } 33 34 #element-without-clearance-applied 35 { 36 clear: both; 37 margin-top: 100px; 38 } 39 ]]></style> 40 41 </head> 42 43 <body> 44 45 <p>Test passes if there is a wide filled green rectangle and <strong>no red</strong>.</p> 46 47 <div id="parent-block"> 48 <div id="sibling"></div> 49 <div id="element-without-clearance-applied"></div> 50 </div> 51 52 <!-- 53 #element-without-clearance-applied's margin-top collapses 54 with #parent-block's margin-bottom: the resulting margin-bottom 55 then collapses with the adjoining white body's margin-bottom 56 --> 57 58 </body> 59 </html>