Element block pseudo-element :before generated with display block border 0px rgba(0,0,0,1) solid transform line-height 1 z-index auto opacity 1 border-radius font-weight normal float none outline none height auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-size 16px box-sizing content-box margin -40px position static background cursor default overflow hidden width 160px padding 20px transition