Reduces YT header (searchbar, ...) height. For new 2017 YT design.
// ==UserScript==
// @name Youtube - Slim Header
// @namespace Youtube - Slim Header
// @include https://www.youtube.com*
// @author harumna
// @description Reduces YT header (searchbar, ...) height. For new 2017 YT design.
// @version 1
// @grant GM_addStyle
// ==/UserScript==
GM_addStyle("#container.ytd-masthead {height: 36px !important;}")
GM_addStyle("#page-manager {margin-top: 36px !important;}")