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<!DOCTYPE html>
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Any copyright is dedicated to the Public Domain.
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<html><head>
<meta charset="utf-8">
<title>Reference: Clamp 'automatic minimum size' to definite max-sizing for items with specified intrinsic 'width'/'height'</title>
<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1300369">
<style type="text/css">
body,html { color:black; background:white; font:16px/1 monospace; padding:0; margin:0; }
.grid {
display: grid;
float: left;
position: relative;
grid-template-columns: repeat(2,20px);
grid-template-rows: repeat(2,20px);
align-items: start;
justify-items: start;
border: 1px dashed;
margin-right: 16px;
margin-bottom: 14px;
}
.c-auto { grid-template-columns: 15px; width: 15px; }
.c-30 { grid-template-columns: 30px; width: 30px; }
.r-auto { grid-template-rows: 15px; height: 15px; }
.r-min { grid-template-rows: 40px; height: 40px; }
.r-max { grid-template-rows: 40px; height: 40px; }
span {
grid-area: 1 / 1;
font-size: 48px;
background: grey;
}
y {
position: absolute;
grid-area: 2 / 1 / 3 / 2;
top:0;left:0;right:0;
height: 10px;
background: lightgrey;
}
.r y {
grid-area: 1 / 2 / 2 / 3;
top:0;bottom:0;left:0;
width: 10px;
height: auto;
}
br { clear: both; }
x { display:block; width:30px; height:40px; }
span { width:15px; }
.r span { width:20px; }
.grid.c-30 span, .r.grid.c-30 span { width:30px; }
.grid.r-auto span { height:40px; }
.r span { height:15px; }
.r.r-min span, .r.r-max span { height:40px; }
</style>
</head>
<body>
<div class="grid c-auto"><y></y><span style="width:30px"><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<br>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<br>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<div class="grid c-30"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r r-auto"><y></y><span style="width:30px"><x>X</x></span></div>
<div class="grid r r-auto"><y></y><span style="width:30px"><x>X</x></span></div>
<div class="grid r r-auto"><y></y><span style="width:30px"><x>X</x></span></div>
<div class="grid r r-auto"><y></y><span style="width:30px"><x>X</x></span></div>
<div class="grid r r-auto"><y></y><span style="width:20px"><x>X</x></span></div>
<br>
<div class="grid r r-min"><y></y><span><x>X</x></span></div>
<div class="grid r r-min"><y></y><span><x>X</x></span></div>
<div class="grid r r-min"><y></y><span><x>X</x></span></div>
<div class="grid r r-min"><y></y><span><x>X</x></span></div>
<div class="grid r r-min"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r r-max"><y></y><span><x>X</x></span></div>
<div class="grid r r-max"><y></y><span><x>X</x></span></div>
<div class="grid r r-max"><y></y><span><x>X</x></span></div>
<div class="grid r r-max"><y></y><span><x>X</x></span></div>
<div class="grid r r-max"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-auto"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-min"><y></y><span><x>X</x></span></div>
<br>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
<div class="grid r c-30 r-max"><y></y><span><x>X</x></span></div>
</body></html>