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