noahcryns

Do you have a link to your website?
CSS will handle this, not sure how complex until I peak at URL.

Hello,
This sounds like a bad install of the theme. Possible missing theme files or bad code.
Is this a new install of this theme and possibly a new install of WordPress.

Which theme are you using?

Try this.

.site-branding {
width: 200px;
}

A total guess, but do you mean the WordPress toolbar at the top of the screen?
Try logging out and see if it goes aways.

If that’s not it.
You can either delete the <div> in HTML, or hide it via CSS.