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