Full Theater invidious

Maximize the video player without going fullscreen.
/* ==UserStyle==
@name          Full Theater invidious
@description   Maximize the video player without going fullscreen.
@author        nullgemm
@version       0.1.1
@namespace     https://greasyfork.org/en/users/322108-nullgemm
@license       WTFPL
==/UserStyle== */

@-moz-document regexp("https://invidio\\.?us.*") {
.pure-u-md-2-24
  {
    width: 0;
  }

  .pure-u-md-20-24
  {
    width: 100%;
  }

  .navbar
  {
    position: fixed;
    left: 0;
    right: 0;
    margin: 0;
    padding: 1em;
    z-index: 2;
    opacity: 0;
    background-color: rgba(35, 35, 35, 1);
    box-shadow: 0 0 10px #000;
  }

  .pure-u-md-4-24,
.pure-u-md-12-24,
.pure-u-md-8-24
  {
    opacity: 0;
    transition: opacity 0.05s linear 0.05s;
  }

  .navbar:hover .pure-u-md-4-24,
.navbar:hover .pure-u-md-12-24,
.navbar:hover .pure-u-md-8-24
  {
    opacity: 1;
  }

  .navbar:hover
  {
    opacity: 1;
  }

  #player-container
  {
    padding-bottom: 100vh;
    padding-left: 0;
    padding-right: 0;
  }

  .player-dimensions.vjs-fluid
  {
    padding-top: 100vh;
  }

  .vjs-big-play-button
  {
    top: calc(50% - 45px / 2) !important;
    left: calc(50% - 90px / 2) !important;
  }
}