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<!DOCTYPE HTML>
<!--
Any copyright is dedicated to the Public Domain.
-->
<html><head>
<meta charset="utf-8">
<title>Reference: Masonry layout with a subgrid</title>
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<style>
html,body {
color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
}
grid {
display: inline-grid;
grid-template-rows: 50px 80px 40px;
grid-template-columns: auto;
gap: 4px 2px;
padding: 1px 3px 5px 7px;
border: solid;
border-width: 3px 5px 1px 1px;
background: lightgrey content-box;
}
masonry-track {
display: grid;
gap: 4px 2px;
}
masonry-track:nth-child(1) {
grid-template-rows: 50px;
grid-template-columns: min-content auto;
}
masonry-track:nth-child(2) {
grid-auto-flow: column;
grid-template-rows: 80px 40px;
grid-template-columns: auto;
}
.rows {
grid-template-columns: 50px 122px;
grid-template-rows: auto;
align-content: start;
}
.rows > masonry-track:nth-child(1) {
grid-template-columns: 50px;
grid-template-rows: auto;
align-content: start;
}
.rows > masonry-track:nth-child(2) {
grid-template-columns: 80px 40px;
grid-template-rows: auto;
align-content: start;
}
item {
background: grey;
width: 3ch;
position: relative;
}
.purple { background:purple; width:auto; justify-self:start; }
.rows .purple { justify-self:stretch; }
.nth-1 {
border: solid;
border-width: 3px 13px 1px 1px;
margin: 7px 1px 5px 3px;
}
subgrid {
display: grid;
grid: subgrid / 2ch auto;
grid-row: 2 / span 2;
grid-gap: 8px 20px;
background: yellow;
}
masonry-track > subgrid {
grid-row: 1 / span 2;
}
.rows > masonry-track > subgrid {
grid: auto auto / subgrid;
grid-row: 2;
grid-column: 1 / span 2;
}
.js { justify-self:stretch; }
</style>
</head>
<body>
<!-- just to sanity check that `masonry` behaves as `none` in the column axis in this case: -->
<grid style="grid:masonry/none">
<item class="nth-1">1</item>
<item class="purple js">2</item>
<item>3</item>
<subgrid style="grid:masonry/none">
<item class="nth-1">4a</item>
<item style="margin-right:15px" class="purple js">4b</item>
</subgrid>
</grid>
<grid>
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid>
<item class="nth-1" style="grid-column:span 2">4a</item>
<item class="purple js">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid>
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:subgrid/auto">
<item class="nth-1">4a</item>
<item class="purple js">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid>
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:subgrid/auto; grid-auto-flow:column">
<item class="nth-1">4a</item>
<item class="purple js">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid>
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:auto auto/masonry">
<item class="nth-1">4a</item>
<item class="purple">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid class="rows">
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid>
<item class="nth-1" style="grid-row:span 2; align-self:start">4a</item>
<item class="purple">4b</item>
<item style="grid-column:2">4c</item>
</subgrid>
</masonry-track>
</grid>
<grid class="rows">
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:auto/subgrid">
<item class="nth-1">4a</item>
<item class="purple">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid class="rows">
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:auto/subgrid; grid-auto-flow:column">
<item class="nth-1">4a</item>
<item class="purple">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
<grid class="rows">
<masonry-track>
<item class="nth-1">1</item>
<item>5</item>
</masonry-track>
<masonry-track>
<item class="purple">2</item>
<item>3</item>
<subgrid style="grid:auto auto/subgrid">
<item class="nth-1">4a</item>
<item class="purple">4b</item>
<item>4c</item>
</subgrid>
</masonry-track>
</grid>
</body></html>