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