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前端适配：移动端/web端适配方案

 5 years ago
source link: https://juejin.im/post/5cbdee71f265da03b57b5866
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科普： rem rem是CSS3新增的一个相对单位（root em，根em）这个单位与em有什么区别呢？ 区别在于 1.使用rem为元素设定字体大小时，仍然是相对大小，但相对的只是HTML根元素。 2.这个单位可谓集相对大小和绝对大小的优点于一身，通过它既可以

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