Element block pseudo-element :before generated with line-height 0 margin 4px box-sizing content-box height 0px border-radius font-size 12px box-shadow 2px 2px 1px rgba(0,0,0,0.3) position relative float left z-index auto font-weight normal width 250px display inline-block overflow visible padding 3px cursor default transition text-shadow background border 1px rgba(140,140,140,1) solid transform