// ==UserScript==
// @name         Imgur fit video size 100%
// @namespace    DQampire
// @version      1.0
// @description  Videos will fill the avaiable viewport.
// @author       DQampire
// @grant        GM_addStyle
// @include https://i.imgur.com/*
// @include http://i.imgur.com/*
// ==/UserScript==
(function() {
let css = `
#content, #content video {
height: 100vh !important;
}
`;
if (typeof GM_addStyle !== "undefined") {
GM_addStyle(css);
} else {
let styleNode = document.createElement("style");
styleNode.appendChild(document.createTextNode(css));
(document.querySelector("head") || document.documentElement).appendChild(styleNode);
}
})();