I'm currently having an issue with a Wordpress theme I have pieced together, there is a good possibility you will look through the Wordpress theme and think this theme is extremely messed up, I'm not a developer so apologies for that.
To the problem:
I have only added wp_header and wp_footer to single.php so this is the page it is effecting, please see below, you will see that the font seems to change into bold, I can only assume this is something to do with the style sheet?
Single post page
You should see the change in the header/top nav bar?
Any help on this would be much appreciated, remember I'm not a developer so if you do have any suggestions try and explain them in as basic terms as possible. Thank you