<!doctype html>
<html><head>
<title>border-image: repeat with zero-width left and right</title>
<style>
span {
  display: inline-block;
  margin: 5px;
  box-sizing: border-box;
  width: 13px;
  border-style: solid;
  border-color: transparent;
  border-width: 10px 0;
  border-image: url("roundrectbutton.png") 10 0 repeat;
}
</style>
</head><body>
<p>
<span style="height:24px"></span>
<span style="height:25px"></span>
<span style="height:26px"></span>
<span style="height:27px"></span>
<span style="height:28px"></span>
<span style="height:30px"></span>
<span style="height:35px"></span>
<span style="height:40px"></span>
<span style="height:50px"></span>
</p>
</body></html>