+.hidden-iframe {\r
+ z-index : -1;\r
+ visibility : hidden;\r
+ overflow : hidden;\r
+ border : 0;\r
+ outline : 0;\r
+ margin : -10px 0 0 -10px;\r
+ padding : 0;\r
+ min-width : 0;\r
+ min-height : 0;\r
+ width : 10px;\r
+ height : 10px;\r
+ max-width : 10px;\r
+ max-height : 10px;\r
+ top : -20px;\r
+ left : -20px;\r
+}\r
+\r
+/* Fix for WebAudio\r
+ * see http://qiita.com/sou/items/5688d4e7d3a37b4e2ff1\r
+--------------------------------------------------------------------------------------*/\r
+ #fps-slowdown-make-sound-noisy {\r
+ width: 0px;\r
+ height: 0px;\r
+ position: absolute;\r
+ -webkit-animation-name: anim-void;\r
+ -webkit-animation-duration: 1s;\r
+ -webkit-animation-iteration-count: infinite;\r
+ }\r
+ @-webkit-keyframes anim-void {\r
+ from {\r
+ top: 0px;\r
+ }\r
+ to {\r
+ top: 1px;\r
+ }\r
+ }\r