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~~Change font-family with JavaScript~~

Change font-family of all elements with JavaScript

I want to change the `font-family` of all elements in a document with JavaScript.

I have tried this:

```js
document.querySelectorAll("body").forEach( (e)=>{
    e.style.fontFamily = "arial";
});
```

This changed the font-family of generally everything besides what already had a `font-family` defined in CSS ID or class.

How could I make the JavaScript command to "run through" these IDs and classes?

javascript

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