Element block pseudo-class :active generated with line-height 1 padding 20px transition z-index auto background border-radius width 160px float none text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) margin 0px overflow hidden cursor default border 0px rgba(0,0,0,1) solid display block font-size 16px box-sizing content-box font-weight normal position static height auto transform