grid-masonry-003.html

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<!doctype html>

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<title>Examples of 'column-rule-extent' 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: 180px;

  align-tracks: start, center, end;

  column-rule: solid blue;

  column-rule-align: rule;

  row-rule: 6px solid purple;

  row-rule-extent: all-long;

  row-rule-align: rule;

  row-rule-longitudinal-inset: 2px;

.all-short { column-rule-extent: all-short; }

.all-start { column-rule-extent: all-start; }

.all-end { column-rule-extent: all-end; }

.all-long { column-rule-extent: all-long; }

x {

  background: grey;

  opacity: 0.5;

x:nth-child(1) { padding-block-start: 30px; }

x:nth-child(2) { }

x:nth-child(3) { padding-block-end: 20px;  }

x:nth-child(7) { }

x:nth-child(8) { padding-block-end: 20px;  }

.grid::after {

  position: absolute;

  bottom: -3em;

  font-size: 10px;

  font-style: italic;

  vertical-align: top;

  content: attr(test);

  white-space: pre;

pre { font-size: 10px; }

</style>

<pre></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></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></div><br>

<script>

window.onload = function() {

  [...document.querySelectorAll('.grid')].forEach(function(elm) {

    const cs = window.getComputedStyle(elm);

    elm.setAttribute("test",

      "'column-rule-extent: " + cs.columnRuleExtent + "' \n" +

      "'column-rule-align: " + cs.columnRuleAlign + "'"

);

});

</script>