Remove the pause overlay in embedded YouTube players

YouTubePauseOverlayRemover.css

/* This is a simple style sheet that removes the
   pause overlay that shows on embedded YouTube
   players. I add this file as a global style sheet in
   Safari from Preferences > Advanced > Style sheet

   Alternatively, in Chrome, this can be done using
   a Chrome Extension called Stylus.
*/
.ytp-pause-overlay {
    display: none;
}