📅  最后修改于: 2022-03-11 14:47:40.405000             🧑  作者: Mango
代码示例4
Extra small .col- <576px
Small .col-sm- ≥576px
Medium .col-md- ≥768px
Large .col-lg- ≥992px
Extra large .col-xl- ≥1200px