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