Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/CSS2/floats/floats-wrap-bfc-with-margin-010.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>CSS Test: Float followed by a BFC root with a negative margin-top</title>
<link rel="author" title="Oriol Brufau" href="obrufau@igalia.com">
<link rel="match" href="floats-wrap-bfc-with-margin-010-ref.html">
<meta name="assert" content="
If the negative margin places the BFC root entirely above the float,
then they don't overlap so we are done.
If the negative margin is not enough to prevent them from overlapping,
then the BFC root needs to be placed adjacent to the float if there
is enough available space, or be cleared below the float.">
<style>
.wrapper {
float: left;
width: 100px;
border: 5px solid;
margin: 75px 10px;
}
.float {
float: left;
width: 50px;
height: 50px;
background: cyan;
}
.bfc {
overflow: hidden;
height: 50px;
background: green;
}
</style>
<div class="wrapper">
<div class="float"></div>
<div class="bfc" style="margin-top: -75px; width: 50px"></div>
</div>
<div class="wrapper">
<div class="float"></div>
<div class="bfc" style="margin-top: -75px; width: 75px"></div>
</div>
<div class="wrapper">
<div class="float"></div>
<div class="bfc" style="margin-top: -25px; width: 50px"></div>
</div>
<div class="wrapper">
<div class="float"></div>
<div class="bfc" style="margin-top: -25px; width: 75px"></div>
</div>