@-webkit-keyframes flash {
	0% {opacity: 1;}	
	25% {opacity: 0;}
	50% {opacity: 1;}
	75% {opacity: 0;}
	100% {opacity: 1;}
}

@-moz-keyframes flash {
	0% {opacity: 1;}	
	25% {opacity: 0;}
	50% {opacity: 1;}
	75% {opacity: 0;}
	100% {opacity: 1;}
}

@-ms-keyframes flash {
	0% {opacity: 1;}	
	25% {opacity: 0;}
	50% {opacity: 1;}
	75% {opacity: 0;}
	100% {opacity: 1;}
}

@keyframes flash {
	0% {opacity: 1;}	
	25% {opacity: 0;}
	50% {opacity: 1;}
	75% {opacity: 0;}
	100% {opacity: 1;}
}

.flash {
	-webkit-animation-name: flash;
	-moz-animation-name: flash;
	-ms-animation-name: flash;
	animation-name: flash;
}