.course-index-content-introduce-wrap{margin-top:30px}.course-index-content-introduce-wrap img{width:200px}.course-index-content-introduce-wrap>.tip{background-color:#f5f8f4;padding:30px 30px 20px;margin-bottom:48px;color:#333}.course-index-content-introduce-wrap>.tip>.content{margin-bottom:10px;font-size:14px}.course-index-content-introduce-wrap>.tip>.auth{font-size:16px;text-align:right}