<!DOCTYPE html>
<html>
<head>
<link rel="match" href="reference/background-size-calc-ref.html" />
<style>
span {
display: inline-block;
min-width: 12px;
min-height: 12px;
background-image: url("assets/2x2checkerboard.png");
background-size: calc(max(0.75em, 12px));
}
</style>
</head>
<body><span></span><img src="assets/2x2checkerboard.png">