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| 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-width:auto</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-width-auto-002-ref.html"> |
| 13 <!-- |
| 14 This testcase tests the used value of "min-width:auto" (the property's |
| 15 initial value) on flex items in a horizontal flex container. |
| 16 |
| 17 It's supposed to resolve to the smallest of: |
| 18 a) The used 'flex-basis' (taken from 'width'), if 'flex-basis' is at its |
| 19 initial value. |
| 20 b) The computed 'max-width' property |
| 21 c) If there's no intrinsic aspect ratio: the item's min-content width. |
| 22 d) If there is an intrinsic aspect ratio: the item's width derived from |
| 23 the ratio & constraints in the other dimension. |
| 24 |
| 25 We measure what the used value is by putting flex items in a small flex |
| 26 container, which will shrink its items down to their min-width. |
| 27 |
| 28 This test checks for situations where we should resolve the min-width as |
| 29 (d) above, with "constraints in the other dimension" being "min-height". |
| 30 --> |
| 31 <style> |
| 32 .flexbox { |
| 33 display: flex; |
| 34 width: 0px; /* No available space; shrink flex items to min-width */ |
| 35 margin-bottom: 2px; /* (Just for spacing things out, visually) */ |
| 36 } |
| 37 |
| 38 .flexbox > * { |
| 39 /* Flex items have purple border: */ |
| 40 border: 2px dotted purple; |
| 41 /* Flex items have sizing constraint in cross axis: */ |
| 42 min-height: 30px; |
| 43 } |
| 44 </style> |
| 45 </head> |
| 46 <body> |
| 47 <!-- Check for min-width:auto resolving correctly when the smallest |
| 48 candidate value is: --> |
| 49 |
| 50 <!-- *** (d) (with intrinsic aspect ratio) The width derived from ratio |
| 51 and constraints in the other dimension *** --> |
| 52 <!-- First, with a larger candidate 'flex-basis' value (from 'width') --> |
| 53 <div class="flexbox"> |
| 54 <img style="width: 100px" src="support/solidblue.png" alt="blue square"> |
| 55 </div> |
| 56 <!-- ...and now with a larger explicit 'flex-basis' value (which shouldn't |
| 57 be considered for 'min-width:auto' anyway) --> |
| 58 <div class="flexbox"> |
| 59 <img style="flex-basis: 100px" src="support/solidblue.png" alt="blue squar
e"> |
| 60 </div> |
| 61 <!-- ...and now with a smaller explicit 'flex-basis' value (which shouldn't |
| 62 be considered for 'min-width:auto' anyway) --> |
| 63 <div class="flexbox"> |
| 64 <img style="flex-basis: 10px" src="support/solidblue.png" alt="blue square
"> |
| 65 </div> |
| 66 </body> |
| 67 </html> |
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Chromium Code Reviews
Issue 1705363002:
Import Mozilla's flexbox tests from csswg-test (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master