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How can I fade in a class when I add it with Javascript?

So, I have this code for my "site":

(this is a codepen link) https://cutt.ly/kGFj7qi

When I press the dark mode button, it just switches to dark mode. What I would like to do is make it so that it fades to dark mode. If needed, I can use jQuery. Is there any way to do this without interfering with the other code? Any help is appreciated.

about 4 years ago · Juan Pablo Isaza
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Since you are adding and removing classes, you can ask the browser to handle the transition for you. I tested this in your pend and it seemed to work but you may want to mess around a bit.

* {
  transition: all 0.25s ease-in-out;
}

where we tell the browser to have some sort of transition between all states that it can. Some states don't allow for transition but colors should.

about 4 years ago · Juan Pablo Isaza Report
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