CSS units allow you to measure and specify different property values. You use them to modify CSS properties such as margins, padding, height, and width to make them compatible with devices of all screen sizes. CSS units have two basic types:  * Absolute units  * Relative units Absolute

freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

Learn about different CSS units like rem, em, px, and percentages. Find out when to use each unit and how they work.

CSS Units – When to Use rem, em, px, and More