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