Element block pseudo-element :before generated with height auto transition background font-size 16px box-sizing content-box margin 0px border-radius box-shadow 2px 1px 1px rgba(0,0,0,0.3) cursor default font-weight normal transform display block border 0px rgba(0,0,0,1) solid z-index auto width 160px padding 20px line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) position static float none overflow hidden