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