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