/* CSS für den Autoplay-Button */
.pswp__button--autoplay {
/* http://www.iconsplace.com/white-icons/play-icon */
background: transparent url(img/play.png) no-repeat scroll 16px 14px !important;
}
.pswp__button--autoplay.stop {
/* http://www.iconsplace.com/white-icons/stop-icon */
background-image: url(img/stop.png) !important;
}