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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/CSS2/margin-padding-clear/margin-auto-on-block-box.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test: Resolution of margin-left or margin-right set to auto on a non-replaced block box</title>
<link rel="match" href="margin-auto-on-block-box-ref.html">
<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com">
<meta name="assert" content="
margin-left:auto shouldn't resolve to a negative amount (assuming direction:ltr).
margin-right:auto may resolve to a negative amount when there is over-constraintment.">
<style>
.wrapper {
width: 100px;
margin-left: 250px;
}
.test {
width: 50px;
height: 5px;
background: black;
margin: auto;
}
.test.big {
width: 200px;
}
</style>
<div class="wrapper">
<div class="test"></div>
<div class="test big"></div>
<div class="test" style="margin-left: -125px"></div>
<div class="test" style="margin-left: -100px"></div>
<div class="test" style="margin-left: -75px"></div>
<div class="test" style="margin-left: -50px"></div>
<div class="test" style="margin-left: -25px"></div>
<div class="test" style="margin-left: 0"></div>
<div class="test" style="margin-left: 25px"></div>
<div class="test" style="margin-left: 50px"></div>
<div class="test" style="margin-left: 75px"></div>
<div class="test" style="margin-left: 100px"></div>
<div class="test" style="margin-left: 125px"></div>
<div class="test big" style="margin-left: -250px"></div>
<div class="test big" style="margin-left: -200px"></div>
<div class="test big" style="margin-left: -150px"></div>
<div class="test big" style="margin-left: -100px"></div>
<div class="test big" style="margin-left: -50px"></div>
<div class="test big" style="margin-left: 0"></div>
<div class="test big" style="margin-left: 50px"></div>
<div class="test big" style="margin-left: 100px"></div>
<div class="test big" style="margin-left: 150px"></div>
<div class="test big" style="margin-left: 200px"></div>
<div class="test big" style="margin-left: 250px"></div>
<div class="test" style="margin-right: -125px"></div>
<div class="test" style="margin-right: -100px"></div>
<div class="test" style="margin-right: -75px"></div>
<div class="test" style="margin-right: -50px"></div>
<div class="test" style="margin-right: -25px"></div>
<div class="test" style="margin-right: 0"></div>
<div class="test" style="margin-right: 25px"></div>
<div class="test" style="margin-right: 50px"></div>
<div class="test" style="margin-right: 75px"></div>
<div class="test" style="margin-right: 100px"></div>
<div class="test" style="margin-right: 125px"></div>
<div class="test big" style="margin-right: -250px"></div>
<div class="test big" style="margin-right: -200px"></div>
<div class="test big" style="margin-right: -150px"></div>
<div class="test big" style="margin-right: -100px"></div>
<div class="test big" style="margin-right: -50px"></div>
<div class="test big" style="margin-right: 0"></div>
<div class="test big" style="margin-right: 50px"></div>
<div class="test big" style="margin-right: 100px"></div>
<div class="test big" style="margin-right: 150px"></div>
<div class="test big" style="margin-right: 200px"></div>
<div class="test big" style="margin-right: 250px"></div>
</div>