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