Hi, As you may know, the current version of MSIE doesn't support the css :hover selector properly for elements other that <a>. There is a hack to fix this, which involves attaching an IE "behavior" to the document via CSS, as follows: body { behavior: url(csshover.htc); } and serving the csshover.htc file (which defines the behaviour using jscript) along with the .css and .htm files as static content. The hack is documented here: http://www.xs4all.nl/~peterned/csshover.html In order to get this to work with servers other than IIS, you need to set the MIME type for files with the .htc extension to be 'text/x-component', otherwise the behavior won't be loaded properly. This doesn't work using Twisted (specifically, using twisted.web.static.File to serve the page, stylesheet and behavior). You can serve the file, and you can set the MIME type by adding it to mimetypes.types_map, but the behavior still isn't loaded. One fix is to change the extension to something else, e.g. .htcHACK, and set the MIME type for that extension instead. That works OK. But why does it work, and why is it necessary? Is something else in Twisted deciding that all files with .htc extensions are Twisted documentation pages, and forcing the content type header back to text/html? curious, Dominic -- // Dream in black and white - // model cities, shooting up in the air