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