.section_3 .echarts_result_content { margin-top: 3mm; padding: 3mm; background-color: #fff; } .section_3 .echarts_result_content .dot { display: inline-block; margin-right: 2mm; width: 2mm; height: 2mm; border-radius: 50%; } .ChapterThree .points{ width: 50mm; }