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