ddx32

function isElementInViewport (el) {

    var rect = el.getBoundingClientRect();
    return ( rect.top <= (window.innerHeight || document.documentElement.clientHeight) - document.documentElement.clientHeight * 0.6 );
}

var el = document.querySelectorAll('.item');

var handler =  function() {
    for (var i = 0; i < el.length; i++) {

ddx32

Keybase proof

I hereby claim:

• I am ddx32 on github.
• I am cerulean (https://keybase.io/cerulean) on keybase.
• I have a public key ASCOlfFmFWdY6jXk3LpfaQVlEViKLDa6Phyd9EYioy8n5Qo

To claim this, I am signing this object:

ddx32

/*
	An extension of andyl's hack – https://gist.github.com/andyl/6360906
	in a mixin version.
*/

@import 'bootstrap'; // if you haven't already

@screen-ms-min: 480px;

.make-ms-column(@columns; @gutter: @grid-gutter-width) {