How to get the value of a CSS property in JavaScript

Jul 7, 2019

Learn how to read the value of any CSS property in JavaScript with getComputedStyle(), including styles set in an external stylesheet, not just inline ones.

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Say you want to fetch the value of a CSS property in a web page, one that is set using a stylesheet.

The style property of an element does not return it, because it only lists CSS properties defined in inline styles, or dynamically.

Not the properties defined in an external stylesheet.

So, how do you do it? Use getComputedStyle(), a global function:

const element = document.querySelector('.my-element')
const style = getComputedStyle(element)
style.backgroundColor //the RGB value

Tagged: JavaScript · All topics

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