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