I\'m looking to set up twitter\'s embedded timeline, it\'s quite easy when you\'re having a fixed design, but that\'s not my case and I\'m actually building a fluid and responsi
This seems to work for me:
#twitter-widget-0 {
width:100%;
}
where #twitter-widget-0 is the iframe it generates, placed in an appropriately-styled container. It's not perfect: the widget generates its contents a bit differently depending on width, and margins, etc. won't be exactly the same after resizing; but this seems minor.
I'm curious as to why simple CSS didn't work for you - sorry if I'm missing something.