Allow images in a <div> to be wider than lines of text in the same <div>

Starx

With a little bit of js, you can do this with avoiding all the complication.

$(document).ready(function() {
    //read every images
    $("img").each(function(k,v) {
        //get the width parent's parent
        var width = $(this).parent().parent().innerWidth();
        //use it
        $(this).css('width',width);
    });
});

Demo