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