---
title: "Discussion on \"What’s The Difference Between REM, EM, And PX?\" | Hashnode"
description: "Discussion on \"What’s The Difference Between REM, EM, And PX?\". In this article, we will talk about REM, EM, and Px. What is and Why do we use rem units?\nWhat is REM In CSS?\nRem (root em) stands for the root element's font size.\nThe font size/text size of the root element can be used to define REM. This means tha..."
url: "https://hashnode.com/posts/whats-the-difference-between-rem-em-and-px/646327fb41c382fd9afaaf5e"
---

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# [What’s The Difference Between REM, EM, And PX?](https://simplifieddev.hashnode.dev/whats-the-difference-between-rem-em-and-px?utm_source=hashnode&utm_medium=feed)

In this article, we will talk about REM, EM, and Px. What is and Why do we use rem units? What is REM In CSS? Rem (root em) stands for the root element's font size. The font size/text size of the root element can be used to define REM. This means tha...

May 16, 2023 · 4 min read · simplifieddev.hashnode.dev  
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