.clock{
 	background:white;
 	width:400px;
	height:400px;
 	margin:0 auto;
	position:relative;
	border-radius:50%;
 	box-shadow: 0 121px 8px rgba(34, 34, 34, 0.3), inset 0 -79px 8px rgba(34, 34, 34, 0.3);
}

.hero-hour {
    top: 50%;
}
.hero-minute {
    top: 50%;
}
.hero-second {
    top: 50%;
}
.clock-face:after {
    top: 50%;
}