/* make the like button smaller */
.fb_edge_widget_with_comment iframe {
    width: 70px !important;
}

/* but make the span that holds the comment box larger */
span.fb_edge_comment_widget.fb_iframe_widget iframe {
    width: 401px !important;
}

.fb_edge_widget_with_comment>span {
	width: 70px !important; 
	height: 20px !important;
}

.fb_edge_widget_with_comment>span>iframe { 
	width: 70px !important; 
	height: 20px !important; 
}