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