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