kobaatsu
8/24/2015 - 2:20 AM

http://touch-slide.jp/column/304/

button-emboss(col = #111, w = 100px, p = 10px)
	display block
	overflow hidden
	background-color transparent
	color col
	width w
	padding p
	box-shadow inset 1px 1px 2px rgba(0, 0, 0, .5), inset -1px -1px 2px rgba(255, 255, 255, .7)
	border-radius 3px
	transition all ease .3s
	&:hover
		text-decoration none
		box-shadow 1px 1px 3px rgba(0, 0, 0, .4)