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