<ol>
<li id="one"> One </li>
<li class="even"> Two </li>
<li> Three </li>
<li class="even"> Four </li>
<li> Five </li>
</ol>
body {
font-size: 1.5rem;
}
ol>.even {
background-color: green;
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.