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