//= require modernizr // github.com/Modernizr/Modernizr/issues/572 // jsfiddle.net/FWeinb/etnYC/ Modernizr.addTest('cssvwunit', function(){

var bool;
Modernizr.testStyles("#modernizr { width: 50vw; }", function(elem, rule) {
    var width = parseInt(window.innerWidth/2,10),
        compStyle = parseInt((window.getComputedStyle ?
                  getComputedStyle(elem, null) :
                  elem.currentStyle)["width"],10);

    bool= (compStyle == width);
});
return bool;

});