CSS
Updating CSS Variables with Javascript
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If you are building an application or SaaS platform, or in fact any website, it can be useful to store all your colours as CSS variables, and then update these once to change the theme of the app.
Fortunately this is relatively straightforward to accomplish. Imagine you have your CSS variables set up like this:
:root {
--main-background: blue;
--main-sidebar: red;
/* Yes these colors do not match */
}
:root
CSS styles are stored on document.documentElement
. So we can access all of its styles via that. So in JS, all we need to do is this:
document.documentElement.style.setProperty("--main-background", "yellow");
Last Updated 1609074689603
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