.online-question-statistic .btn-group .btn{display:inline-block;font-size:12px;text-align:center;font-family:SimHei;font-weight:700}.online-question-statistic .btn-group .btn-click{cursor:pointer}.online-question-statistic .btn-group .btn-green{color:#67c23a}.online-question-statistic .btn-group .btn-blue{color:#409eff}.online-question-statistic .btn-group .btn-red{color:#f56c6c}