Sonar animation for attention point.

sonar.css

.q_done_mrkr {
	display: inline-block;
	font-size: 0px;
	cursor: pointer;
	margin: 15px 30px;
	width: 20px;
	height: 20px;
	border-radius: 50%;
	text-align: center;
	position: absolute;
	z-index: 1;
	color: #fff;
}

.q_done_mrkr:after {
	pointer-events: none;
	position: absolute;
	width: 100%;
	height: 100%;
	border-radius: 50%;
	content: '';
	-webkit-box-sizing: content-box; 
	-moz-box-sizing: content-box; 
	box-sizing: content-box;
	box-shadow: none !important;
}



/* Effect 8 */
.q_done_mrkr {
	background: rgba(255,255,255,0.1);
	-webkit-transition: -webkit-transform ease-out 0.1s, background 0.2s;
	-moz-transition: -moz-transform ease-out 0.1s, background 0.2s;
	transition: transform ease-out 0.1s, background 0.2s;
	-webkit-animation-iteration-count: infinite;
}

.q_done_mrkr:after {
	top: 0;
	left: 0;
	padding: 0;
	z-index: -1;
	box-shadow: 0 0 0 2px rgba(255,255,255,0.1);
	opacity: 0;
	-webkit-transform: scale(0.9);
	-moz-transform: scale(0.9);
	-ms-transform: scale(0.9);
	transform: scale(0.9);
	-webkit-animation-iteration-count: infinite;
}

.no-touch .q_done_mrkr:hover {
	background: rgba(255,255,255,0.05);
	-webkit-transform: scale(0.93);
	-moz-transform: scale(0.93);
	-ms-transform: scale(0.93);
	transform: scale(0.93);
	color: #fff;
}

.q_done_mrkr:after {
	-webkit-animation: sonarEffect 1.3s ease-out 75ms infinite;
	-moz-animation: sonarEffect 1.3s ease-out 75ms infinite;
	animation: sonarEffect 1.3s ease-out 75ms infinite;
}

@-webkit-keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	40% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
		-webkit-transform: scale(1.5);
		opacity: 0;
	}
}
@-moz-keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	40% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
		-moz-transform: scale(1.5);
		opacity: 0;
	}
}
@keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	40% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #ff0000, 0 0 0 10px rgba(255,255,255,0.5);
		transform: scale(1.5);
		opacity: 0;
	}
}