flexbox-min-height-auto-004.html (2410B)
1 <!DOCTYPE html> 2 <!-- 3 Any copyright is dedicated to the Public Domain. 4 http://creativecommons.org/publicdomain/zero/1.0/ 5 --> 6 <html> 7 <head> 8 <meta charset="utf-8"> 9 <title>CSS Test: Testing min-height:auto & 'overflow' interaction</title> 10 <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com"> 11 <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#min-size-auto"> 12 <link rel="match" href="flexbox-min-height-auto-004-ref.html"> 13 <!-- 14 This testcase checks how "overflow-x" indirectly impacts the sizing 15 behavior of flex items with "min-height:auto" (the new initial value 16 for "min-height"), via its influence on "overflow-y". 17 18 In particular, the flex-item-specific "min-height:auto" behavior is 19 supposed to be disabled (e.g. we end up with min-height:0) when 20 "overflow-y" is non-"visible". Moreover, when "overflow-x" is set to a 21 scrolling value, it forces "overflow-y" to compute to a scrolling value 22 as well, as described at 23 http://www.w3.org/TR/css-overflow-3/#overflow-properties 24 So, "overflow-x" has an indirect effect (via "overflow-y") here. 25 --> 26 <style> 27 .flexbox { 28 display: flex; 29 flex-direction: column; 30 height: 30px; /* Shrink flex items below min-height */ 31 margin-right: 2px; /* (Just for spacing things out, visually) */ 32 float: left; 33 } 34 35 .flexbox > * { 36 /* Flex items have purple border: */ 37 border: 2px dotted purple; 38 } 39 40 .flexbox > * > * { 41 /* Flex items' contents are gray & fixed-size: */ 42 background: gray; 43 width: 40px; 44 height: 80px; 45 } 46 47 .xvisible { overflow-x: visible; } 48 .xhidden { overflow-x: hidden; } 49 .xscroll { overflow-x: scroll; } 50 .xauto { overflow-x: auto; } 51 </style> 52 </head> 53 <body> 54 <!-- min-height:auto should prevent shrinking below intrinsic height when 55 the flex item has "overflow-x: visible", but not for any other 56 overflow-x values (because of overflow-x's influence on overflow-y). 57 --> 58 <div class="flexbox"><div class="xvisible"><div></div></div></div> 59 <div class="flexbox"><div class="xhidden"><div></div></div></div> 60 <div class="flexbox"><div class="xscroll"><div></div></div></div> 61 <div class="flexbox"><div class="xauto"><div></div></div></div> 62 </body> 63 </html>