grid-automatic-minimum-for-auto-rows-001.html

<!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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