JSFiddle - React, Tailwind, and code Playground

by ozzon91

HTML

<div class="blank">
  <video id="my" autoplay loop>
  <source src="http://zoobastik.muvik.tv/video/Palii_bg.mp4" type="video/mp4">
  </video>
</div>

CSS

html {
  margin:0;
  padding:0;
  border:0;
}

body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, code,
del, dfn, em, img, q, dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, dialog, figure, footer, header,
hgroup, nav, section {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

/* This helps to make newer HTML5 elements behave like DIVs in older browers */
article, aside, details, figcaption, figure, dialog,
footer, header, hgroup, menu, nav, section {
    display:block;
}

/* Line-height should always be unitless! */
body {
  line-height: 1.5;
  background: white;
}

/* Tables still need 'cellspacing="0"' in the markup. */
table {
  border-collapse: separate;
  border-spacing: 0;
}
/* float:none prevents the span-x classes from breaking table-cell display */
caption, th, td {
  text-align: left;
  font-weight: normal;
  float:none !important;
}
table, th, td {
  vertical-align: middle;
}

/* Remove possible quote marks (") from <q>, <blockquote>. */
blockquote:before, blockquote:after, q:before, q:after { content: ''; }
blockquote, q { quotes: "" ""; }

/* Remove annoying border on linked images. */
a img { border: none; }

/* Remember to define your own focus styles! */
:focus { outline: 0; }

body {
  background-color: violet;
	position: relative;
}

.blank {
  background-color: #000;
  position: relative;
  height: 573px;
  overflow: hidden;
}

video {
margin: auto; 
position: absolute;
 top: 50%; left: 50%; 
 -webkit-transform: translate(-50%, -50%); 
 transform: translate(-50%, -50%); 
 width: auto;
height: auto;
}

JavaScript

function _resize() {

        var videoHeight = $('#my').height(),
            videoWidth = $('#my').width();

        var wrapperHeight = $('.blank').height(),
            wrapperWidth = $('.blank').width();

            console.log(wrapperWidth / videoWidth);
            console.log(wrapperHeight / videoHeight);

        if (wrapperWidth / videoWidth > wrapperHeight / videoHeight) {
            $('#my').css({
                "width": wrapperWidth + 2,
                "height": "auto"
            });
        } else {
           $('#my').css({
                "width": "auto",
                "height": wrapperHeight + 2
            });
        }
    };