怎么做响应式布局和自适应布局？

怎么做响应式布局？

参考文章：

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https://www.cnblogs.com/yuanziwen/p/6926561.html

https://orianna-zzo.github.io/sci-tech/2018-08/%E5%89%8D%E7%AB%AF%E8%AF%95%E6%B0%B43-%E8%87%AA%E9%80%82%E5%BA%94%E4%B8%8E%E5%93%8D%E5%BA%94%E5%BC%8F%E5%B8%83%E5%B1%80/