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