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Test overflow-clip-margin keywords, negative offsets, and effect on scrollers #59009

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Merged
tabatkins merged 1 commit into from
Apr 6, 2026
Merged

Test overflow-clip-margin keywords, negative offsets, and effect on scrollers #59009

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31 changes: 31 additions & 0 deletions css/css-overflow/overflow-clip-margin-013.html
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<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: border-box</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 80px;
height: 80px;
border: 10px solid transparent;
overflow: clip;
overflow-clip-margin: border-box;
background: red;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -60px;
left: -60px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
32 changes: 32 additions & 0 deletions css/css-overflow/overflow-clip-margin-014.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: content-box</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
border: 10px solid transparent;
padding: 10px;
margin: -20px 0 0 -20px;
overflow: clip;
overflow-clip-margin: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
31 changes: 31 additions & 0 deletions css/css-overflow/overflow-clip-margin-015.html
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Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: keyword + positive length</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 80px;
height: 80px;
border: 10px solid transparent;
overflow: clip;
overflow-clip-margin: padding-box 10px;
background: red;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -60px;
left: -60px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
33 changes: 33 additions & 0 deletions css/css-overflow/overflow-clip-margin-016.html
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Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: keyword + negative length</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
padding: 10px;
margin: -10px 0 0 -10px;
overflow: clip;
overflow-clip-margin: padding-box -10px;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
33 changes: 33 additions & 0 deletions css/css-overflow/overflow-clip-margin-017.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: just a negative length</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
padding: 10px;
margin: -10px 0 0 -10px;
overflow: clip;
overflow-clip-margin: -10px;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
32 changes: 32 additions & 0 deletions css/css-overflow/overflow-clip-margin-018.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,32 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: content-box on a scroller</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
border: 10px solid transparent;
padding: 10px;
margin: -20px 0 0 -20px;
overflow: hidden;
overflow-clip-margin: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
33 changes: 33 additions & 0 deletions css/css-overflow/overflow-clip-margin-019.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: keyword + negative length on a scroller</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
padding: 10px;
margin: -10px 0 0 -10px;
overflow: hidden;
overflow-clip-margin: padding-box -10px;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
33 changes: 33 additions & 0 deletions css/css-overflow/overflow-clip-margin-020.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,33 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: just a negative length on a scroller</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 100px;
height: 100px;
padding: 10px;
margin: -10px 0 0 -10px;
overflow: hidden;
overflow-clip-margin: -10px;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -50px;
left: -50px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
34 changes: 34 additions & 0 deletions css/css-overflow/overflow-clip-margin-021.html
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: border-box is ignored on a scroller</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 80px;
height: 80px;
padding: 10px;
border: 10px solid transparent;
margin: -10px 0 0 -10px;
overflow: hidden;
overflow-clip-margin: border-box;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -60px;
left: -60px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
34 changes: 34 additions & 0 deletions css/css-overflow/overflow-clip-margin-022.html
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Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
<!doctype html>
<html class="reftest">
<meta charset="utf-8">
<title>overflow-clip-margin: border-box is ignored on a scroller, including the offset</title>
<link rel="help" href="https://www.w3.org/TR/css-overflow-3/#propdef-overflow-clip-margin">
<link rel="author" title="Tab Atkins-Bittner" href="mailto:jackalmage@gmail.com">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
.clip {
width: 80px;
height: 80px;
padding: 10px;
border: 10px solid transparent;
margin: -10px 0 0 -10px;
overflow: hidden;
overflow-clip-margin: border-box -1000px;
background: red;
background-clip: content-box;
}
.big {
width: 100px;
height: 100px;
border: 50px solid red;
position: relative;
top: -60px;
left: -60px;
z-index: 1;
background: green;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div class=clip>
<div class=big></div>
</div>
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