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📜  网格系统引导程序 - 任何代码示例

📅  最后修改于: 2022-03-11 15:00:04.039000             🧑  作者: Mango

代码示例3
Extra small  .col-    <576px    
Small  .col-sm- ≥576px    
Medium .col-md- ≥768px    
Large  .col-lg-  ≥992px    
Extra large .col-xl- ≥1200px