My website looks different when viewed on a 27" monitor

WARNING: My website is an educational piece of journalism about the adult industry. Therefore my site has ADULT THEMES.

I’ve noticed that when working on a 27" desktop screen the white graphic (tunnel) on the first page is really warped and doesn’t fit the screen. I’m worried my website won’t be compatible across different monitors now. I’m using VH rather than Pixel for my sizing - don’t know if that’s a problem.


Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Here’s an example, this shouldn’t be cut off: