the CSS file extension is associated with CSS...
the CSS keyword/reserved word highlighting is working....
but my CSS autocompletion doesn't work..

ex..i type
.classname{
color: {here nothing happens.. no list no popup no tooltip...}
}

**EDIT**
Code completion works if i manually execute it (ctrl-space)
Any Ideas??
Felix

Using.
Verion 4.5.1 Evalution

That's right. As of versions 4.0 and 4.5 code completion dropdown does not appear automatically for HTML and CSS files. Mostly because of historical reasons.
People complained that they are experiencing big lag in typing when auto-dropdown is turned on for HTML and CSS. A little investigation showed that it happened when the source file is big enough. So we decided to turn this auto- feature off.
Probably we'll re-establish the auto-dropdown in the near future when we get HTML/CSS parser to work faster.