Element block pseudo-class :active generated with display block width 160px padding 20px float none cursor default height auto background transition box-sizing content-box border 3px rgba(0,0,0,1) solid box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal position static overflow hidden z-index auto border-radius font-size 16px margin 0px transform line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2)