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