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