How do I add Javascript and CSS into my HTML file?

Hey family, I created a crypto currency converter and embedded the HTML file into my site. How do I include the javascript and css code to make my widget functional? I included a screenshot of how it looks on my site compared to how it should really look. Thank you!

You can add to the embedded code:

<html>
<head>
<style>
.my-input {
background-color: blue;
border-radius: 12px;
}
</style>
</head>
<!-- put the html divs inside body tags below -->
</html>

Hey, thanks for responding. that didn’t work for me. It’s displaying as the same, plus I still don’t know where to put the javascript to make the html active.

Post your code