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[Masonry] Adding support for Masonry out-of-flow items #54728

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Merged
merged 1 commit into from
Sep 6, 2025
Merged

[Masonry] Adding support for Masonry out-of-flow items #54728

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144 changes: 144 additions & 0 deletions css/css-grid/masonry/tentative/abspos/column-masonry-alignment-ref.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
html,body {
color:black;
background-color:white;
font:15px/1 monospace;
}

.container {
width: 850px;
height: 800px;
border: 2px solid black;
margin: 20px;
}

.grid {
display: grid;
grid-template-columns: repeat(5, 150px);
grid-auto-rows: auto;
position: relative;
padding: 20px;
gap: 15px;
border: 1px dashed #999;
height: 700px;
}

.item {
background: lightblue;
padding: 10px;
border: 1px solid blue;
height: 80px;
}

.abspos {
position: absolute;
width: 60px;
height: 40px;
border: 2px solid black;
font-size: 10px;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
}

.align-self {
grid-column: 2 / 3;
grid-row: 1 / 2;
}

.align-start {
align-self: start;
background: lightcoral;
}

.align-end {
align-self: end;
background: lightgreen;
}

.align-center {
align-self: center;
background: lightblue;
}

.justify-self {
grid-column: 4 / 5;
grid-row: 1 / 2;
}

.justify-start {
justify-self: start;
background: gold;
}

.justify-end {
justify-self: end;
background: silver;
}

.justify-center {
justify-self: center;
background: tan;
}

.combo-center-center {
grid-column: 3 / 4;
grid-row: 1 / 2;
align-self: center;
justify-self: center;
background: hotpink;
}

.safe-align {
position: absolute;
background: orange;
border: 1px solid darkorange;
grid-column: 1 / 2;
grid-row: 1 / 2;
width: 170px;
height: 30px;
justify-self: safe end;
align-self: center;
font-size: 10px;
}

.unsafe-align {
position: absolute;
background: purple;
border: 1px solid darkmagenta;
grid-column: 5 / 6;
grid-row: 1 / 2;
width: 170px;
height: 30px;
justify-self: unsafe end;
align-self: center;
font-size: 10px;
}
</style>
</head>
<body>
<div class="container">
<div class="grid">
<div class="item">Item 1</div>
<div class="item">Item 2</div>
<div class="item">Item 3</div>
<div class="abspos align-self align-start">align-self: start</div>
<div class="abspos align-self align-end">align-self: end</div>
<div class="abspos align-self align-center">align-self: center</div>
<div class="item">Item 4</div>
<div class="item">Item 5</div>
<div class="abspos justify-self justify-start">justify-self: start</div>
<div class="abspos justify-self justify-end">justify-self: end</div>
<div class="abspos justify-self justify-center">justify-self: center</div>
<div class="abspos combo-center-center">center + center</div>
<div class="safe-align">justify-self: safe end</div>
<div class="unsafe-align">justify-self: unsafe end</div>
</div>
</div>
</body>
</html>
142 changes: 142 additions & 0 deletions css/css-grid/masonry/tentative/abspos/column-masonry-alignment.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Masonry Test: Masonry layout alignment properties for absolutely positioned elements</title>
<link rel="author" title="Yanling Wang" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
<link rel="match" href="column-masonry-alignment-ref.html">
<style>
html,body {
color:black;
background-color:white;
font:15px/1 monospace;
}

.container {
width: 850px;
height: 800px;
border: 2px solid black;
margin: 20px;
}

.masonry {
display: masonry;
grid-template-columns: repeat(5, 150px);
position: relative;
padding: 20px;
gap: 15px;
border: 1px dashed #999;
height: 700px;
}

.item {
background: lightblue;
padding: 10px;
border: 1px solid blue;
height: 80px;
}

.abspos {
position: absolute;
width: 60px;
height: 40px;
border: 2px solid black;
font-size: 10px;
display: flex;
align-items: center;
justify-content: center;
text-align: center;
}

.align-self {
grid-column: 2 / 3;
}

.align-start {
align-self: start;
background: lightcoral;
}

.align-end {
align-self: end;
background: lightgreen;
}

.align-center {
align-self: center;
background: lightblue;
}

.justify-self {
grid-column: 4 / 5;
}

.justify-start {
justify-self: start;
background: gold;
}

.justify-end {
justify-self: end;
background: silver;
}

.justify-center {
justify-self: center;
background: tan;
}

.combo-center-center {
grid-column: 3 / 4;
align-self: center;
justify-self: center;
background: hotpink;
}

.safe-align {
position: absolute;
background: orange;
border: 1px solid darkorange;
grid-column: 1 / 2;
width: 170px;
height: 30px;
justify-self: safe end;
align-self: center;
font-size: 10px;
}

.unsafe-align {
position: absolute;
background: purple;
border: 1px solid darkmagenta;
grid-column: 5 / 6;
width: 170px;
height: 30px;
justify-self: unsafe end;
align-self: center;
font-size: 10px;
}
</style>
</head>
<body>
<div class="container">
<div class="masonry">
<div class="item">Item 1</div>
<div class="item">Item 2</div>
<div class="item">Item 3</div>
<div class="abspos align-self align-start">align-self: start</div>
<div class="abspos align-self align-end">align-self: end</div>
<div class="abspos align-self align-center">align-self: center</div>
<div class="item">Item 4</div>
<div class="item">Item 5</div>
<div class="abspos justify-self justify-start">justify-self: start</div>
<div class="abspos justify-self justify-end">justify-self: end</div>
<div class="abspos justify-self justify-center">justify-self: center</div>
<div class="abspos combo-center-center">center + center</div>
<div class="safe-align">justify-self: safe end</div>
<div class="unsafe-align">justify-self: unsafe end</div>
</div>
</div>
</body>
</html>
51 changes: 51 additions & 0 deletions css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof-ref.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style>
.container {
border: 2px solid black;
margin: 10px;
width: 300px;
position: relative;
}

.grid {
display: grid;
grid-template-columns: repeat(3, auto);
grid-template-rows: auto;
border: 2px solid blue;
}

.oof-item {
position: absolute;
background: red;
color: white;
padding: 5px;
border: 1px solid darkred;
}

.oof-1 {
top: 50px;
left: 50px;
width: 60px;
height: 40px;
}

.oof-2 {
top: 100px;
left: 150px;
width: 70px;
height: 50px;
}
</style>
</head>
<body>
<div class="container">
<div class="grid">
<div class="oof-item oof-1"></div>
<div class="oof-item oof-2"></div>
</div>
</div>
</body>
</html>
55 changes: 55 additions & 0 deletions css/css-grid/masonry/tentative/abspos/column-masonry-intrinsic-sizing-oof.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Masonry Test: Masonry layout intrinsic size with only OOF children</title>
<link rel="author" title="Yanling Wang" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-grid-3/#track-sizing">
<link rel="help" href="https://drafts.csswg.org/css-grid-3/#abspos">
<link rel="match" href="column-masonry-intrinsic-sizing-oof-ref.html">
<style>
.container {
border: 2px solid black;
margin: 10px;
width: 300px;
position: relative;
}

.masonry {
display: masonry;
grid-template-columns: repeat(3, auto);
border: 2px solid blue;
}

.oof-item {
position: absolute;
background: red;
color: white;
padding: 5px;
border: 1px solid darkred;
}

.oof-1 {
top: 50px;
left: 50px;
width: 60px;
height: 40px;
}

.oof-2 {
top: 100px;
left: 150px;
width: 70px;
height: 50px;
}
</style>
</head>
<body>
<div class="container">
<div class="masonry">
<div class="oof-item oof-1"></div>
<div class="oof-item oof-2"></div>
</div>
</div>
</body>
</html>
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