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