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ul.jp-controls li.jp-mute-unmute-button{top:5px;left:154px;width:16px;height:16px;}div.jp-interface ul.jp-controls a{overflow:hidden;text-indent:-9999px;}a.jp-play,div.jp-pause,a.jp-stop,a.jp-mute,div.jp-unmute{width:16px;height:16px;}a.jp-play,div.jp-pause,a.jp-stop{margin:4px;}.jp-pause.ui-icon-pause{background-position:-17px -160px;cursor:pointer;}.jp-unmute.ui-icon-volume-on{background-position:-143px -160px;cursor:pointer;}div.jp-audio div.jp-type-single a.jp-play,div.jp-audio div.jp-type-single a.jp-pause{}div.jp-audio div.jp-type-playlist a.jp-play,div.jp-audio div.jp-type-playlist a.jp-pause{}div.jp-video a.jp-play,div.jp-video a.jp-pause{top:15px;}div.jp-video-270p div.jp-type-single a.jp-play,div.jp-video-270p div.jp-type-single a.jp-pause{left:195px;}div.jp-video-270p div.jp-type-playlist a.jp-play,div.jp-video-270p div.jp-type-playlist a.jp-pause{left:220px;}div.jp-video-360p div.jp-type-single a.jp-play,div.jp-video-360p div.jp-type-single a.jp-pause{left:275px;}div.jp-video-360p div.jp-type-playlist a.jp-play,div.jp-video-360p div.jp-type-playlist a.jp-pause{left:300px;}a.jp-play{}a.jp-play:hover{}a.jp-pause{display:none;}a.jp-pause:hover{}div.jp-audio div.jp-type-single a.jp-stop{top:26px;left:90px;}div.jp-audio div.jp-type-playlist a.jp-stop{top:26px;left:126px;}div.jp-video a.jp-stop{top:21px;}div.jp-video-270p div.jp-type-single a.jp-stop{left:245px;}div.jp-video-270p div.jp-type-playlist a.jp-stop{left:298px;}div.jp-video-360p div.jp-type-single a.jp-stop{left:325px;}div.jp-video-360p div.jp-type-playlist a.jp-stop{left:378px;}a.jp-stop{z-index:1;}a.jp-stop:hover{}div.jp-audio div.jp-type-playlist a.jp-previous{left:20px;top:26px;}div.jp-video div.jp-type-playlist a.jp-previous{top:21px;}div.jp-video-270p div.jp-type-playlist a.jp-previous{left:192px;}div.jp-video-360p div.jp-type-playlist a.jp-previous{left:272px;}a.jp-previous{background:url(/National_Library/20160526010038oe_/http://physics.pnas.org/sites/all/themes/highwire/hw_theme_1/jplayer/jplayer.blue.monday.jpg) 0 -112px no-repeat;width:28px;height:28px;}a.jp-previous:hover{background:url(/National_Library/20160526010038oe_/http://physics.pnas.org/sites/all/themes/highwire/hw_theme_1/jplayer/jplayer.blue.monday.jpg) -29px -112px no-repeat;}div.jp-audio div.jp-type-playlist a.jp-next{left:88px;top:26px;}div.jp-video div.jp-type-playlist a.jp-next{top:21px;}div.jp-video-270p div.jp-type-playlist a.jp-next{left:260px;}div.jp-video-360p div.jp-type-playlist a.jp-next{left:340px;}a.jp-next{background:url(/National_Library/20160526010038oe_/http://physics.pnas.org/sites/all/themes/highwire/hw_theme_1/jplayer/jplayer.blue.monday.jpg) 0 -141px no-repeat;width:28px;height:28px;}a.jp-next:hover{background:url(/National_Library/20160526010038oe_/http://physics.pnas.org/sites/all/themes/highwire/hw_theme_1/jplayer/jplayer.blue.monday.jpg) -29px -141px no-repeat;}div.jp-progress{position:absolute;overflow:hidden;}div.jp-audio div.jp-type-single div.jp-progress{top:32px;left:130px;width:122px;height:15px;}div.jp-audio div.jp-type-playlist div.jp-progress{top:5px;left:55px;width:100px;height:12px;}div.jp-video div.jp-progress{top:0px;left:0px;width:100%;height:10px;}div.jp-seek-bar{width:0px;cursor:pointer;}div.jp-play-bar{width:0px;}div.jp-seeking-bg{}a.jp-mute,a.jp-unmute{}div.jp-audio div.jp-type-single a.jp-mute,div.jp-audio div.jp-type-single a.jp-unmute{top:32px;left:274px;}div.jp-audio div.jp-type-playlist a.jp-mute,div.jp-audio div.jp-type-playlist a.jp-unmute{top:32px;left:296px;}div.jp-video a.jp-mute,div.jp-video a.jp-unmute{top:27px;}div.jp-video-270p div.jp-type-single a.jp-mute,div.jp-video-270p div.jp-type-single a.jp-unmute{left:304px;}div.jp-video-270p div.jp-type-playlist a.jp-unmute,div.jp-video-270p div.jp-type-playlist a.jp-mute{left:363px;}div.jp-video-360p div.jp-type-single a.jp-mute,div.jp-video-360p div.jp-type-single a.jp-unmute{left:384px;}div.jp-video-360p div.jp-type-playlist a.jp-mute,div.jp-video-360p div.jp-type-playlist a.jp-unmute{left:443px;}a.jp-unmute{display:none;}a.jp-unmute:hover{}div.jp-volume-bar{cursor:pointer;}div.jp-audio div.jp-type-single div.jp-volume-bar{}div.jp-audio div.jp-type-playlist div.jp-volume-bar{top:10px;left:173px;height:6px;width:40px;}div.jp-video div.jp-volume-bar{top:32px;}div.jp-video-270p div.jp-type-single div.jp-volume-bar{left:332px;}div.jp-video-270p div.jp-type-playlist div.jp-volume-bar{left:391px;}div.jp-video-360p div.jp-type-single div.jp-volume-bar{left:412px;}div.jp-video-360p div.jp-type-playlist div.jp-volume-bar{left:471px;}div.jp-volume-bar-value{}div.jp-current-time,div.jp-duration{position:absolute;font-size:.5em;font-style:oblique;}div.jp-duration{text-align:right;}div.jp-audio div.jp-type-single div.jp-current-time,div.jp-audio div.jp-type-single div.jp-duration{top:49px;left:130px;width:122px;}div.jp-audio div.jp-type-playlist div.jp-current-time,div.jp-audio div.jp-type-playlist div.jp-duration{top:20px;left:57px;width:100px;}div.jp-video div.jp-current-time,div.jp-video div.jp-duration{top:10px;left:0px;width:98%;padding:0 1%;}div.jp-playlist{width:100%;background-color:#ccc;border:1px solid #009be3;border-top:none;}div.jp-playlist ul{list-style-type:none;margin:0;padding:0 20px;font-size:.72em;}div.jp-type-single div.jp-playlist li{padding:5px 0 5px 20px;font-weight:bold;}div.jp-type-playlist div.jp-playlist li{padding:5px 0 4px 20px;border-bottom:1px solid #eee;}div.jp-type-playlist div.jp-playlist li.jp-playlist-last{padding:5px 0 5px 20px;border-bottom:none;}div.jp-type-playlist div.jp-playlist li.jp-playlist-current{list-style-type:square;list-style-position:inside;padding-left:8px;}div.jp-type-playlist div.jp-playlist a{color:#666;text-decoration:none;}div.jp-type-playlist div.jp-playlist a:hover{color:#0d88c1;}div.jp-type-playlist div.jp-playlist a.jp-playlist-current{color:#0d88c1;}div.jp-type-playlist div.jp-playlist div.jp-free-media{display:inline;margin-left:20px;}div.jp-video div.jp-video-play{position:absolute;cursor:pointer;z-index:2;}div.jp-video div.jp-video-play:hover{}div.jp-video-270p div.jp-video-play{top:-270px;width:480px;height:270px;}div.jp-video-360p div.jp-video-play{top:-360px;width:640px;height:360px;}div.jp-jplayer{width:0px;height:0px;}div.jp-video div.jp-jplayer{border:1px solid #009be3;border-bottom:none;z-index:1;}div.jp-video-270p div.jp-jplayer{width:480px;height:270px;}div.jp-video-360p div.jp-jplayer{width:640px;height:360px;}div.jp-jplayer{background-color:#000000;}