changing content border on page

This is in fact a CSS issue, and the border attribute is deprecated of late when used inline so we want to add this to a Child Theme, Custom CSS

I would help more but your site is blacklisted.

https://sitecheck.sucuri.net/results/jbournedesign.com/whaler/listings/

Are you aware why?

To add a border to the iframe, add this in the CSS file (style.css):

#boatlist iframe {
border: 3px solid #000
}

The order border (around the table) can be styled with this:

#boatlist table {
background: #cc0000;
}

Best practice is to use classes and reference them in CSS (style.css) instead of inline.

wtf blacklisted?? what does that mean??

I was not aware and really dont know why.

Can anyone fill me in on what that means?

btw what prompted you to check that i was blacklisted?