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