I was using:
.fb-comments, .fb-comments span, .fb-comments iframe[style] {
width: 100% !important;
}
To make Facebook Comments responsi
Hope this helps:
/* resize facebook comments */
(function(window){
var dh = null;
$(window).on("resize",function(){
if ( dh ) {
clearTimeout(dh);
}
dh = setTimeout(function(){
var $fbc = $(".fb-comments");
var $stc = $(".comments-container");
dh = null;
if ( $fbc.attr("data-width") != $stc.width() ) {
$stc.css({height:$stc.height()});
$fbc.attr("data-width", $stc.width());
FB.XFBML.parse($stc[0],function(){
$stc.css({height:'auto'});
});
}
},300);
}).trigger("resize");
})(this);
Cheers!