Muse code highlighting with CSS

[ZelluX]

Hi, all

I'm using <src> tags to highlight source code in muse, the generated
html contains color settings in span style attributes, like
<span style="color: #00ffff; font-weight: bold;">def</span>

But i'd like to have my own highlighting style settings in .css files,
how to make it generate htmls like
<span class="keyword">def</span>

Many thanks ;-)