Turn back on the <blink> tag in HTML5

blink.css

blink {
	-webkit-animation: 1s linear infinite condemned_blink_effect;
	/*  for Safari 4.0 - 8.0 */
	animation: 1s linear infinite condemned_blink_effect;
}

@-webkit-keyframes condemned_blink_effect {
	/* for Safari 4.0 - 8.0 */
	0% {
		visibility: hidden;
	}
	50% {
		visibility: hidden;
	}
	100% {
		visibility: visible;
	}
}

@keyframes condemned_blink_effect {
	0% {
		visibility: hidden;
	}
	50% {
		visibility: hidden;
	}
	100% {
		visibility: visible;
	}
}