How can I make the Facebook Like button’s width automatically resize?

#fblike iframe {
    width: 95px !important;
}

#fblike .fb_edge_comment_widget iframe {
    width: 330px !important;
}

And

<div id="fblike"><fb:like show-faces="false" layout="button_count"></fb:like></div>

This way both comment and like button iframes are fixed width. No funny effects. Hope it helps.