body {
	margin: 1em;
	background: #333;
	color: #ccc;
	font: normal 3vw/1 'Montserrat', sans-serif;
	text-align: center;
	text-transform: uppercase;
}

h1 {
	font-size: 5vw;
}

button {
	font-size: 0.5em;
}

[class*="push"] {
	position: relative;
	display: inline-block;
	width: 240px;
	height: 240px;
	border: 0;
	margin: 1em;
	outline: none;
	background-color: #c2290a;
	border-radius: 50%;
	cursor: pointer;
	transition: box-shadow 200ms;
}

.push--flat {
	box-shadow: inset 0 7.5px 0 #da2e0b, inset 0 -7.5px 0 #aa2409, inset 0 0 0 7.5px #b32609, inset 0 0 0 20px #c2290a, inset 0 0 0 24px #611405, inset 0 0 0 26.08696px black, inset 0 0 0 32px rgba(247, 133, 110, 0.7), inset 0 0 0 43.63636px #c2290a, inset 0 96px 32px #aa2409, inset 0 0 24px 40px #911f08, 0 12px 0 rgba(0, 0, 0, 0.3);
}

.push--flat:after {
	content: '';
	position: absolute;
	bottom: 12px;
	left: 24px;
	display: block;
	width: 192px;
	height: 192px;
	border: 16px solid rgba(0, 0, 0, 0.3);
	border-width: 0 0 16px;
	border-radius: 50%;
	transition-duration: 200ms;
}

.push--flat:active, .push--flat.is-pushed {
	box-shadow: inset 0 7.5px 0 #da2e0b, inset 0 -7.5px 0 #aa2409, inset 0 0 0 7.5px #b32609, inset 0 0 0 20px #c2290a, inset 0 0 0 24px #611405, inset 0 0 0 28.23529px black, inset 0 0 0 32px rgba(247, 133, 110, 0.2), inset 0 0 0 43.63636px #b32609, inset 0 96px 32px #9b2108, inset 0 0 24px 40px #791a06, 0 12px 0 rgba(0, 0, 0, 0.3);
	background-color: #b8270a;
}

.push--flat:active:after, .push--flat.is-pushed:after {
	bottom: 28px;
	border-width: 0;
}

.push--skeuo {
	box-shadow: inset 0 10px 0 #da2e0b, inset 0 -10px 4px #aa2409, 0 0 4px #c2290a, inset 0 0 8px #791a06, inset 0 0 8px rgba(51, 51, 51, 0.5), inset 0 0 4px 20px #c2290a, inset 0 -8px 6px 24px rgba(51, 51, 51, 0.7), inset 0 0 4px 24px #611405, inset 0 0 4px 24px rgba(51, 51, 51, 0.7), inset 0 0 2px 26.08696px black, inset 0 0 2px 30px rgba(247, 133, 110, 0.7), inset 0 12px 0 28.23529px rgba(244, 71, 37, 0.7), inset 0 -12px 4px 28.23529px rgba(145, 31, 8, 0.2), inset 0 0 0 43.63636px #c2290a, inset 0 96px 32px #aa2409, inset 0 0 24px 40px #911f08, 0 6px 12px rgba(0, 0, 0, 0.5);
}

.push--skeuo:active, .push--skeuo.is-pushed {
	box-shadow: inset 0 10px 0 #da2e0b, inset 0 -10px 4px #aa2409, 0 0 4px #c2290a, inset 0 0 8px #791a06, inset 0 0 8px rgba(51, 51, 51, 0.5), inset 0 0 4px 20px #c2290a, inset 0 -8px 6px 24px rgba(51, 51, 51, 0.7), inset 0 0 4px 24px #611405, inset 0 0 4px 24px rgba(51, 51, 51, 0.7), inset 0 0 6px 28.23529px black, inset 0 0 2px 32px rgba(247, 133, 110, 0.2), inset 0 12px 0 28px rgba(244, 71, 37, 0.5), inset 0 -12px 4px 28px rgba(97, 20, 5, 0.2), inset 0 0 0 43.63636px #b32609, inset 0 96px 32px #9b2108, inset 0 0 24px 40px #791a06, 0 6px 12px rgba(0, 0, 0, 0.5);
	background-color: #b8270a;
}

.push--skeuo:active:before, .push--skeuo.is-pushed:before {
	opacity: .5;
}

.push--skeuo:before {
	content: '';
	position: absolute;
	bottom: 53.33333px;
	left: 66.66667px;
	display: block;
	width: 109.09091px;
	height: 72.72727px;
	background: rgba(247, 133, 110, 0.2);
	background: linear-gradient(to top, rgba(250, 173, 158, 0.3) 0%, rgba(194, 41, 10, 0.1) 100%);
	border-radius: 40% 40% 60% 60%;
	transition: opacity 200ms;
}