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