What is the rem unit in CSS? How is it different from em?

What is the rem unit in CSS? How is it different from em?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: easy

标签: interviewbit, css, topic-specific, frontend

参考答案摘要

The rem unit stands for “root em.” It is a relative unit that is calculated based on the font size of the root element. By default, most browsers set: html font-size = 16px So: 1rem = 16px 2rem = 32px...

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