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