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