Using CSS variables for theming

css

I have restyled my site slightly, and as you might have noticed, I added a theme selector in the top right corner.

Using CSS variables, it is very easy to do and great fun too.

Basically this works by setting a “root” with your default css variables

which are then used for example in the body

When the select dropdown is changed, some JavaScript fires, adding a data attribute called “theme-slector” to the body element

finally, we add some more CSS so that it corresponds to the chosen theme

Here is a Codepen showing it in action:

See the Pen
CSS variables for theming
by Alessandro Muraro (@akmur)
on CodePen.

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