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