contain-layout-ignored-cases-no-principal-box-001.html (1325B)
1 <!DOCTYPE HTML> 2 <html> 3 <head> 4 <meta charset="utf-8"> 5 <title>CSS Test: 'contain: layout' should not create a stacking context when no principle box is generated.</title> 6 <link rel="author" title="Yusuf Sermet" href="mailto:ysermet@mozilla.com"> 7 <link rel="author" title="Morgan Rae Reschenberg" href="mailto:mreschenberg@berkeley.edu"> 8 <link rel="help" href="https://drafts.csswg.org/css-contain/#containment-layout"> 9 <link rel="match" href="contain-paint-ignored-cases-no-principal-box-001-ref.html"> 10 <style> 11 div { 12 position: relative; 13 width: 100px; 14 } 15 #div1, 16 #div3 { 17 background-color: #cfc; 18 height: 100px; 19 } 20 #div1 { 21 z-index: 5; 22 } 23 #div2 { 24 display: contents; 25 contain: layout; 26 background-color: #fdd; 27 height: 100px; 28 top: -20px; 29 } 30 #div2_1 { 31 background-color: #ffc; 32 z-index: 6; 33 top: -10px; 34 height: 100px; 35 } 36 #div2_2 { 37 z-index: 3; 38 position: absolute; 39 top: -15px; 40 width: 40px; 41 height: 300px; 42 background-color: #ddf; 43 } 44 #div3 { 45 z-index: 2; 46 top: -50px; 47 } 48 </style> 49 </head> 50 <body> 51 <div id="div1"></div> 52 53 <div id="div2"> 54 <div id="div2_1"></div> 55 56 <div id="div2_2"></div> 57 </div> 58 59 <div id="div3"></div> 60 </body> 61 </html>