<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Reference: symbols function, invalid</title>
<link rel="author" title="Xidorn Quan" href="https://www.upsuper.org/">
<style type="text/css">
  div {
    padding: 0; margin: 0;
    line-height: 150%;
  }
</style>
<!-- list-style-type: a -->
<div>-2,-2</div>
<div>-1,-1</div>
<div>0,0</div>
<div>1,1</div>
<div>2,2</div>
<!-- list-style-type: b -->
<div>-2&#x3001;-2</div>
<div>-1&#x3001;-1</div>
<div>0&#x3001;0</div>
<div>1&#x3001;1</div>
<div>2&#x3001;2</div>
<!-- section -->
<div>-2</div>
<div>-1</div>
<div>0</div>
<div>1</div>
<div>2</div>