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