block-container-block-end-self-collapsing-children-offsets-nested-once.html (1158B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <link rel="author" title="Sammy Gill" href="mailto:sammy.gill@apple.com"> 5 <link rel="help" href="https://drafts.csswg.org/css-box-4/#margin-trim-block"> 6 <meta name="assert" content="block-end margins in nested content should be trimmed when they collapse through to the outer block container"> 7 <style> 8 .outer { 9 margin-trim: block; 10 } 11 container { 12 display: block; 13 } 14 item { 15 display: block; 16 margin-block-end: 40px; 17 inline-size: 50px; 18 block-size: 50px; 19 background-color: green; 20 } 21 .collapsed { 22 margin-block-start: 50px; 23 block-size: 0px; 24 } 25 </style> 26 <script src="/resources/testharness.js"></script> 27 <script src="/resources/testharnessreport.js"></script> 28 <script src="/resources/check-layout-th.js"></script> 29 </head> 30 <body onload="checkLayout('container > item')"> 31 <div id="target"> 32 <container class="outer"> 33 <container> 34 <item data-offset-y="8"></item> 35 <item data-offset-y="58" class="collapsed"></item> 36 <item data-offset-y="58" class="collapsed"></item> 37 </container> 38 </container> 39 </div> 40 </body> 41 </html>