HTML/CSS/XML/display

display: list-item

 
<?xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<?xml-stylesheet type="text/css" href="xml-numbered-list.css"?>
<list>
    <item>R</item>
    <item>S</item>
    <item>R</item>
</list>
list {
    display: block;
    margin-left: 20px;
    list-style-type: decimal;
}
item {
    display: list-item;
}