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