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