34
面试题库（长期维护）
source link: https://juejin.im/post/5ca0425e51882567ce181037
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
评论区可以纠错完善，也可以留言面试题目 css部分 rem原理 rem布局的本质是等比缩放，一般是基于宽度，假设将屏幕宽度分为100份，每份宽度是1rem，1rem的宽度是屏幕宽度/100,，然后子元素设置rem单位的属性， 通过改变html元素的字体大小，
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK