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<!DOCTYPE html>
<title>Relative child can overflow onto the column gap area</title>
<style>
body {
margin: 0px;
}
.child {
width: 100px;
height: 50px;
background: green;
}
.child2 {
width: 100px;
height: 50px;
background: green;
position: absolute;
left: 125px;
top: 0px;
}
</style>
<div class="child"></div>
<div class="child2"></div>