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<!DOCTYPE html>
<title>CSS Grid: automatic minimum in 'auto' rows</title>
<link rel="author" title="Sergio Villar" href="mailto:svillar@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-grid/#layout-algorithm">
<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#automatic-minimum-size">
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=464287">
<meta name="assert" content="Check that grid item's 'min-width' is honored when sizing 'auto' rows.">
<link rel="stylesheet" href="/css/support/grid.css">
<link rel="stylesheet" href="/fonts/ahem.css">
<style>
.grid { font: 10px/1 Ahem; }
.minHeight10 { min-height: 10px; }
.minHeight20 { min-height: 20px; }
.minHeight30 { min-height: 30px; }
.minHeight40 { min-height: 40px; }
.minHeight50 { min-height: 50px; }
.minHeight60 { min-height: 60px; }
.minHeight70 { min-height: 70px; }
.minHeight90 { min-height: 90px; }
.minHeightMaxContent { min-height: max-content; }
.height30 { height: 30px; }
.height50 { height: 50px; }
.height60 { height: 60px; }
.height200 { height: 200px; }
.border5 { border: 5px solid #abc; }
.padding8 { padding: 8px 0px; }
/* All these 4 cases are equivalent. We use them interchangeably. */
.gridAuto { grid-template-rows: auto; }
.gridMinMaxAutoAuto { grid-template-rows: minmax(auto, auto); }
.gridMinMaxAutoMaxContent { grid-template-rows: minmax(auto, max-content); }
.gridMinMaxMinContentAuto { grid-template-rows: minmax(min-content, auto); }
/* All these 3 cases are equivalent. We use them interchangeably. */
.gridAutoAndAuto { grid-template-rows: auto auto; }
.gridAutoAndMinMaxAutoAuto { grid-template-rows: auto minmax(auto, auto); }
.gridMinMaxAutoMaxContentAndAuto { grid-template-rows: minmax(auto, max-content) auto; }
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div class="grid gridAuto constrainedContainer" id="gridAuto">
<div class="firstRowFirstColumn minHeight40">XX<br>XXX<br>XX<br>XXX<br>XXXX</div>
</div>
<div class="grid gridAuto constrainedContainer" id="gridAutoItemSmallerThanMinSize">
<div class="firstRowFirstColumn minHeight40">XX</div>
</div>
<div class="grid gridMinMaxAutoAuto constrainedContainer" id="gridMinMaxAutoAuto">
<div class="firstRowFirstColumn minHeight40">XX<br>XX</div>
</div>
<div class="grid gridMinMaxAutoMaxContent constrainedContainer" id="gridMinMaxAutoMaxContent">
<div class="firstRowFirstColumn minHeight20 height30"></div>
</div>
<div class="grid gridMinMaxMinContentAuto constrainedContainer" id="gridMinMaxMinContentAuto">
<div class="firstRowFirstColumn minHeight60">X</div>
</div>
<div class="grid gridAuto constrainedContainer" id="gridAutoMultipleItems">
<div class="firstRowFirstColumn minHeight60">X<br>X</div>
<div class="firstRowSecondColumn minHeight20"">XXX<br>X<br>XX<br>XX</div>
<div class="firstRowAutoColumn minConstrainedContainer height50"></div>
</div>
<div class="grid gridMinMaxAutoAuto constrainedContainer" id="gridMinMaxAutoAutoMultipleItemsOneWithoutMinHeight">
<div class="firstRowFirstColumn height30">X<br>X</div>
<div class="firstRowSecondColumn minHeight50"></div>
<div class="firstRowAutoColumn minHeight20">XXXX<br>X<br>XX<br>XXX</div>
</div>
<div class="grid gridMinMaxAutoMaxContent constrainedContainer" id="gridMinMaxAutoMaxContentMultipleItemsOneWithAutoMinHeight">
<div class="firstRowFirstColumn minHeight30">X<br>X</div>
<div class="firstRowSecondColumn height60">XX</div>
<div class="firstRowAutoColumn minHeight20">XXX<br>XX<br>XXX<br>XX</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto" id="gridAutoAndAutoFixedHeightChildren">
<div class="firstRowFirstColumn height200"></div>
<div class="secondRowFirstColumn height50"></div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto" id="gridAutoAndAutoOneSpanningOneNonSpannig">
<div class="firstRowFirstColumn">XX XX</div>
<div class="bothRowFirstColumn minHeight50">XXXXXX X XXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto" id="gridAutoAndAutoOneSpanningMultipleNonSpanning">
<div class="bothRowSecondColumn minHeight60">XX XX XX</div>
<div class="firstRowFirstColumn">X X X X</div>
<div class="firstRowFirstColumn">XX XX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndMinMaxAutoAuto" id="gridAutoAndMinMaxAutoAutoOneSpanningOneNonSpanning">
<div class="secondRowFirstColumn">X XXX XX</div>
<div class="bothRowSecondColumn minHeight70">XXX XXXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndMinMaxAutoAuto" id="gridAutoAndMinMaxAutoAutoMultipleSpanning">
<div class="bothRowSecondColumn minHeight70">XX XX XX</div>
<div class="bothRowFirstColumn">XXXXX X XXXXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridMinMaxAutoMaxContentAndAuto"
id="gridMinMaxAutoMaxContentAndAutoOneSpanningMultipleNonSpanning">
<div class="secondRowFirstColumn minHeight60">X XXX XX</div>
<div class="bothRowSecondColumn minHeight90">XXXXX XXXXX</div>
<div class="firstRowFirstColumn">XX XX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridMinMaxAutoMaxContentAndAuto"
id="gridMinMaxAutoMaxContentAndAutoMultipleSpanningMultipleNonSpanning">
<div class="bothRowSecondColumn">XX XX XX XX</div>
<div class="firstRowFirstColumn minHeight40">XXX</div>
<div class="bothRowFirstColumn minHeight90">X XX XXX</div>
<div class="secondRowFirstColumn">X XX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoWithFixedHeightChild">
<div class="firstRowFirstColumn height60">XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto height30" id="gridAutoWithFixedHeightChildAndMinHeight">
<div class="firstRowFirstColumn height60 minHeight40">XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoWithFixedHeightChildAndHigherMinHeight">
<div class="firstRowFirstColumn height60 minHeight90">XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto" id="gridAutoAndAutoOneSpanningFixedHeight">
<div class="bothRowFirstColumn height50">XX XXX XX XXX XX XXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto height30" id="gridAutoAndAutoOneSpanningFixedHeightAndMinHeight">
<div class="bothRowFirstColumn height60 minHeight50">XX XXX XX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAutoAndAuto" id="gridAutoAndAutoOneSpanningFixedHeightAndHigherMinHeight">
<div class="bothRowFirstColumn height60 minHeight70">XX XXX XX X XX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoFixedMinHeightWithBorder">
<div class="firstRowFirstColumn minHeight40 border5">XXXXXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoFixedMinHeightWithPadding">
<div class="firstRowFirstColumn minHeight40 padding8">XXXXXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoFixedMinHeightWithBorderAndPadding">
<div class="firstRowFirstColumn minHeight40 border5 padding8">XXXXXX</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoAutoMinHeightWithBorder">
<div class="firstRowFirstColumn border5">XX<br>XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoAutoMinHeightWithPadding">
<div class="firstRowFirstColumn padding8">XX<br>XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoAutoMinHeightWithBorderAndPadding">
<div class="firstRowFirstColumn border5 padding8">XX<br>XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoMaxContentMinHeightWithBorder">
<div class="firstRowFirstColumn minHeightMaxContent border5">XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoMaxContentMinHeightWithPadding">
<div class="firstRowFirstColumn minHeightMaxContent padding8">XXX X</div>
</div>
</div>
<div class="constrainedContainer">
<div class="grid gridAuto" id="gridAutoMaxContentMinHeightWithBorderAndPadding">
<div class="firstRowFirstColumn border5 padding8 minHeightMaxContent">XXX X</div>
</div>
</div>
<script>
function testGridRowsValues(id, computedRowValue)
{
assert_equals(window.getComputedStyle(document.getElementById(id))
.getPropertyValue('grid-template-rows')", computedRowValue);
}
setup({ explicit_done: true });
document.fonts.ready.then(() => {
test(() => {
testGridRowsValues('gridAuto', '40px');
testGridRowsValues('gridAutoItemSmallerThanMinSize', '40px');
testGridRowsValues('gridMinMaxAutoAuto', '40px');
testGridRowsValues('gridMinMaxAutoMaxContent', '30px');
testGridRowsValues('gridMinMaxMinContentAuto', '60px');
testGridRowsValues('gridAutoMultipleItems', '60px');
testGridRowsValues('gridMinMaxAutoAutoMultipleItemsOneWithoutMinHeight', '50px');
testGridRowsValues('gridMinMaxAutoMaxContentMultipleItemsOneWithAutoMinHeight', '60px');
testGridRowsValues('gridAutoAndAutoFixedHeightChildren', '200px 50px');
}, 'Check that min-height is honored when sizing auto rows.');
test(() => {
testGridRowsValues('gridAutoAndAutoOneSpanningOneNonSpannig', '10px 40px');
testGridRowsValues('gridAutoAndAutoOneSpanningMultipleNonSpanning', '40px 20px');
testGridRowsValues('gridAutoAndMinMaxAutoAutoOneSpanningOneNonSpanning', '40px 30px');
testGridRowsValues('gridAutoAndMinMaxAutoAutoMultipleSpanning', '35px 35px');
testGridRowsValues('gridMinMaxAutoMaxContentAndAutoOneSpanningMultipleNonSpanning', '25px 65px');
testGridRowsValues('gridMinMaxAutoMaxContentAndAutoMultipleSpanningMultipleNonSpanning', '50px 40px');
}, 'Check that min-height is honored when sizing auto rows and spanning grid items.');
test(() => {
testGridRowsValues('gridAutoWithFixedHeightChild', '60px');
testGridRowsValues('gridAutoWithFixedHeightChildAndMinHeight', '60px');
testGridRowsValues('gridAutoWithFixedHeightChildAndHigherMinHeight', '90px');
testGridRowsValues('gridAutoAndAutoOneSpanningFixedHeight', '25px 25px');
testGridRowsValues('gridAutoAndAutoOneSpanningFixedHeightAndMinHeight', '30px 30px');
testGridRowsValues('gridAutoAndAutoOneSpanningFixedHeightAndHigherMinHeight', '35px 35px');
}, 'Check the interactions between height and min-height and auto tracks.');
test(() => {
testGridRowsValues('gridAutoFixedMinHeightWithBorder', '50px');
testGridRowsValues('gridAutoFixedMinHeightWithPadding', '56px');
testGridRowsValues('gridAutoFixedMinHeightWithBorderAndPadding', '66px');
testGridRowsValues('gridAutoAutoMinHeightWithBorder', '40px');
testGridRowsValues('gridAutoAutoMinHeightWithPadding', '46px');
testGridRowsValues('gridAutoAutoMinHeightWithBorderAndPadding', '56px');
testGridRowsValues('gridAutoMaxContentMinHeightWithBorder', '30px');
testGridRowsValues('gridAutoMaxContentMinHeightWithPadding', '36px');
testGridRowsValues('gridAutoMaxContentMinHeightWithBorderAndPadding', '46px');
}, 'Check that borders and paddings are considering when computing min sizes.');
done();
});
</script>
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