Making Sense of CSS Length Units
September 8, 2025
Junior developers who were recently introduced to CSS might be overwhelmed by the sheer number of various length-measuring units available. Someone might say not to use px as absolute units don’t change in responsive design but is that really the case?Let’s have a quick overview on the various units and when they can be useful.
Source: Making Sense of CSS Length Units
When CSS first arrived, it had just a handful of types of units, and only one or two that people ever really used: pixels and ems.
Now there are many, and they can be very daunting for those new to CSS. So here is a fantastic overview of all the kinds of units you might find obscure or common in CSS today.
