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