Template:Input/styles.css

.keyboard-key {
	border-radius: 0.2em;
	box-shadow: 0.05rem 0.04rem 0 0 #777,-0.05rem 0.04rem 0 0 #777,0 0.25rem 0 .05rem #333,0 -.1rem .2rem #e5e5e5 inset;
	background-image: linear-gradient(to bottom,#ccc,#eee,#fff,#eee,#ccc);
	padding: 0.3em 0.5em;
	font-family: inherit;
	font-size: 0.85em;
	font-weight: bold;
}