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<!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 triangle-right {
system: cyclic;
symbols: \25b8;
suffix: ' ';
}
@counter-style triangle-left {
system: cyclic;
symbols: \25c2;
suffix: ' ';
}
@counter-style triangle-down {
system: cyclic;
symbols: \25be;
suffix: ' ';
}
@counter-style triangle-up {
system: cyclic;
symbols: \25b4;
suffix: ' ';
}
ul {
padding: 0;
list-style-position: inside;
}
.t-u { list-style-type: triangle-up; }
.t-d { list-style-type: triangle-down; }
.t-r { list-style-type: triangle-right; }
.t-l { list-style-type: triangle-left; }
div { font: 16px system-ui; margin: 1em; border: 1px solid gray; }
li::marker { font-family: inherit; }
</style>
<div style="width: 10em;">
<ul dir="ltr">
<li class="t-r">closed ltr
<li class="t-d">open ltr
</ul>
<ul dir="rtl">
<li class="t-l">closed rtl
<li class="t-d">open rtl
</ul>
<p dir="ltr">▸ closed ltr
<p dir="rtl">◂ closed rtl
</div>
<div style="writing-mode: vertical-lr; height: 10em;">
<ul dir="ltr">
<li class="t-d">closed ltr
<li class="t-r">open ltr
</ul>
<ul dir="rtl">
<li class="t-u">closed rtl
<li class="t-r">open rtl
</ul>
<p dir="ltr">▾ closed ltr
<p dir="rtl">▴ closed rtl
</div>
<div style="writing-mode: vertical-rl; height: 10em;">
<ul dir="ltr">
<li class="t-d">closed ltr
<li class="t-l">open ltr
</ul>
<ul dir="rtl">
<li class="t-u">closed rtl
<li class="t-l">open rtl
</ul>
<p dir="ltr">▾ closed ltr
<p dir="rtl">▴ closed rtl
</div>
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