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