Embed weirdly stretches way beyond end of page (css not being "read" via reference in custom code)

https://preview.webflow.com/preview/midnight-gaming?utm_medium=preview_link&utm_source=designer&utm_content=midnight-gaming&preview=dcbe40d256816559759e2dc9def0f91a&pageId=5f8c3aebcd245cffee7048e4&workflow=preview

ive been toying around for a couple hours now testing lots of different combinations of things to try to get this to work correctly, but nothing is coming of it


Above is an image of how it Should look, Below is how it actually looks

I have it set to hide over flow right now, But it stretches super far down the page
ill set it to show, and you can check it out for yourself here:

i believe it may be that its not “reading” the css file referenced in the custom code
How would i go about doing that?