javascript: (function() {
  const randomFullNumber = window.__meetsRandomNumber = window.__meetsRandomNumber || Math.floor(Math.random() * 1000000)
  const className = `button-${randomFullNumber}`
  ;[...document.getElementsByClassName(className)].forEach(e => e.remove())

  ;[...document.getElementsByTagName('video')].forEach(addButton)
  function addButton(video) {
    const btn = document.createElement("button")
    btn.setAttribute('tabindex', 1)
    btn.setAttribute('class', className)
    btn.setAttribute('style', `
      z-index: 999999999;
      background: white;
      width: 28px;
      height: 28px;
      position: absolute;
      right: 50px;
      display: block;
      border-radius: 14px;
      margin: 8px;
      background-image: url('data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4NCjxzdmcgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB3aWR0aD0iMjAiIGhlaWdodD0iMjAiIHZpZXdCb3g9IjAgMCAyMCAyMCI+DQogIDx0aXRsZT4NCiAgICBmdWxsc2NyZWVuDQogIDwvdGl0bGU+DQogIDxwYXRoIGZpbGwtcnVsZT0iZXZlbm9kZCIgZD0iTTEgMXY2aDJWM2g0VjFIMXptMiAxMkgxdjZoNnYtMkgzdi00em0xNCA0aC00djJoNnYtNmgtMnY0em0wLTE2aC00djJoNHY0aDJWMWgtMnoiLz4NCjwvc3ZnPg0K');
      background-repeat: no-repeat;
      background-position: center;
      filter: invert(1);
    `)
    btn.addEventListener('focus', () => {btn.style.outline = '5px solid #c00'})
    btn.addEventListener('blur', () => {btn.style.outline = ''})
    if (video.style.display !== 'none') {
      video.parentElement.parentElement.appendChild(btn)
      btn.addEventListener('click', (event) => {
        video.requestFullscreen()
        video.addEventListener('fullscreenchange', function focusOnFullScreenExit() {
            if (!document.fullscreenElement) {
              video.removeEventListener('fullscreenchange', focusOnFullScreenExit)
              btn.focus()
            }
          }
        )
      })
    }
  }
})()