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