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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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+<!DOCTYPE html>
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>CSS Test: Testing min-width:auto</title>
+ <link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
+ <link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#min-size-auto">
+ <link rel="match" href="flexbox-min-width-auto-002-ref.html">
+<!--
+ This testcase tests the used value of "min-width:auto" (the property's
+ initial value) on flex items in a horizontal flex container.
+
+ It's supposed to resolve to the smallest of:
+ a) The used 'flex-basis' (taken from 'width'), if 'flex-basis' is at its
+ initial value.
+ b) The computed 'max-width' property
+ c) If there's no intrinsic aspect ratio: the item's min-content width.
+ d) If there is an intrinsic aspect ratio: the item's width derived from
+ the ratio & constraints in the other dimension.
+
+ We measure what the used value is by putting flex items in a small flex
+ container, which will shrink its items down to their min-width.
+
+ This test checks for situations where we should resolve the min-width as
+ (d) above, with "constraints in the other dimension" being
+ max-height-clamped "height".
+-->
+ <style>
+ .flexbox {
+ display: flex;
+ width: 0px; /* No available space; shrink flex items to min-width */
+ margin-bottom: 2px; /* (Just for spacing things out, visually) */
+ }
+
+ .flexbox > * {
+ /* Flex items have purple border: */
+ border: 2px dotted purple;
+ /* Flex items have sizing constraint in cross axis: */
+ max-height: 30px;
+ height: 60px;
+ }
+ </style>
+ </head>
+ <body>
+ <!-- Check for min-width:auto resolving correctly when the smallest
+ candidate value is: -->
+
+ <!-- *** (d) (with intrinsic aspect ratio) The width derived from ratio
+ and constraints in the other dimension *** -->
+ <!-- First, with a larger candidate 'flex-basis' value (from 'width') -->
+ <div class="flexbox">
+ <img style="width: 100px" src="support/solidblue.png" alt="blue square">
+ </div>
+ <!-- ...and now with a larger explicit 'flex-basis' value (which shouldn't
+ be considered for 'min-width:auto' anyway) -->
+ <div class="flexbox">
+ <img style="flex-basis: 100px" src="support/solidblue.png" alt="blue square">
+ </div>
+ <!-- ...and now with a smaller explicit 'flex-basis' value (which shouldn't
+ be considered for 'min-width:auto' anyway) -->
+ <div class="flexbox">
+ <img style="flex-basis: 10px" src="support/solidblue.png" alt="blue square">
+ </div>
+ </body>
+</html>