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