Generally, there are two possibilities - embed style in
the document or link an external CSS file
using a processing instruction.
In the former case it is recommended to enclose
CSS rules in CDATA section.
Output
 |
| SVG version |
Source
<svg width="100" height="30" xmlns="http://www.w3.org/2000/svg" >
<style type="text/css"> text {fill: red; font-family: SansSerif} </style>
<text x="0" y="20">Red text</text>
</svg>