<!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">
  @counter-style disclosure-closed2-ltr {
    system: cyclic;
    symbols: \25b8;
    suffix: ' ';
  }
  @counter-style disclosure-closed2-rtl {
    system: cyclic;
    symbols: \25c2;
    suffix: ' ';
  }
  @counter-style disclosure-open2 {
    system: cyclic;
    symbols: \25be;
    suffix: ' ';
  }
  .open { list-sty