white background where text is placed change

Do not edit the Twenty Ten theme. First create a child theme for your changes. Or install a custom CSS plugin.

im well aware that i should be using a child theme

Then perhaps you should include that in your opening post.
Always include as much information as possible.

And the response was not off-topic. It is considered good practice here to check whether a poster is using a child theme first before offering suggestions.

Good luck with your site.