Sass instead of Css

Looks like Sass rocks, instead of plain old CSS. Who can resist; cleaner syntax, variables, math, templates.

<font face="monospace">// sass example
</font>!margin = 16px

<font face="monospace">table.hl
  margin: !margin / 2
</font><font><font face="monospace">  padding: !margin / 2
</font></font><font face="monospace">  td.ln
    text-align: right

li
  font:
    family: serif
    weight: bold
    size: 1.2em
</font>

Css has been great for styling, but terrible for layout. Now I need a project that needs some webmastering. Hmm, there's also CleverCss which is a little less standard and a little more Python.