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