Your embed code seems to be fine. However since you are embedding into your own website with its own CSS in some cases those can clash. And this is the case of your website.
I found that you have this CSS that overrides the close button color:
Hi @stevloc Welcome to the community! Our embed code will automatically include an ‘x’ button that appears on the upper righthand corner for the respondent to close the window.
Though, it looks like the form might be custom embedded on the site, which is why that ‘x’ isn’t appearing. You’ll either need to manually add it in with your own code or, the easiest solution, would be to use the embed code we provide in the builder directly without any custom code added.
Your embed code seems to be fine. However since you are embedding into your own website with its own CSS in some cases those can clash. And this is the case of your website.
I found that you have this CSS that overrides the close button color: