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