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<!doctype html>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<title>Examples of 'column-rule-extent: all-*' values in a Masonry grid layout.</title>
<style>
.grid {
position: relative;
display: inline-grid;
grid: masonry / 3ch 4ch 5ch;
gap: 20px;
margin-right: 20px;
margin-bottom: 40px;
background: lightgrey;
block-size: 160px;
align-content: center;
align-tracks: center;
column-rule: solid blue;
column-rule-align: rule;
row-rule: 6px solid purple;
row-rule-align: rule;
}
.all-start { column-rule-extent: all-start; column-rule-lateral-inset-start: 0; }
.all-end { column-rule-extent: all-end; column-rule-lateral-inset-end: 0; }
.all-short { column-rule-extent: all-short; }
.all-long { column-rule-extent: all-long; }
x {
background: grey;
opacity: 0.5;
}
x:nth-child(1) { }
x:nth-child(2) { }
x:nth-child(3) { padding-block-end: 30px; }
x:nth-child(7) { }
x:nth-child(8) { padding-block-end: 20px; }
.grid::after {
position: absolute;
bottom: -2.5em;
font-size: 10px;
font-style: italic;
vertical-align: top;
content: attr(test);
white-space: pre;
}
pre { font-size: 10px; }
</style>
<pre>All have 'row-rule-align: rule' to make the purple rules
align with the nearest edge of the blue column rules.
In the bottom two grids, 'column-rule-lateral-inset-start/end'
is zero, respectively, to make the blue rule attach to the side
of the track that it used for its longitudinal sizing.
</pre>
<div class="grid all-short"><x>1</x><x>2</x><x>3</x><x>4</x><x>5</x><x>6</x><x>7</x><x>8</x></div>
<div class="grid all-long"><x>1</x><x>2</x><x>3</x><x>4</x><x>5</x><x>6</x><x>7</x><x>8</x></div><br>
<div class="grid all-start"><x>1</x><x>2</x><x>3</x><x>4</x><x>5</x><x>6</x><x>7</x><x>8</x></div>
<div class="grid all-end"><x>1</x><x>2</x><x>3</x><x>4</x><x>5</x><x>6</x><x>7</x><x>8</x></div><br>
<script>
window.onload = function() {
[...document.querySelectorAll('.grid')].forEach(function(elm) {
const cs = window.getComputedStyle(elm);
var inset = cs.columnRuleLateralInsetStart + " " + cs.columnRuleLateralInsetEnd;
inset = inset != "auto auto" ? ("\n" + "'column-rule-lateral-inset: " + inset) : "";
elm.setAttribute("test",
"'column-rule-extent: " + cs.columnRuleExtent + inset
);
});
}
</script>
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