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