Load video lazy
// https://github.com/tylerpearson/lazyYT
// link(rel="stylesheet", href="css/lazyYT.css")
// script(src="js/lazyYT.js")
// Id get from video
<div class="lazyYT" data-youtube-id="_oEA18Y8gM0" data-ratio="16:9">loading...</div>
//inti plugin
$('.lazyYT').lazyYT();