<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
p {
  font: 12px Impact, Times, serif;
}
span {
  background: black;
  text-decoration: overline;
  text-decoration-style: wavy;
}
</style>
</head>
<body>
<p>
<span>abcxyz</span>
</p>
</body>
</html>