Spaces? Could be that your HTML is using multiple lines in the edit box...every line inserts a <br> at the end which messes up the html. Could that be the problem? Remove any new lines and string it all together as one line.
You need to put the HTML into one big long row... otherwise, when there are line breaks in the post (when you hit enter on the keyboard) Threads adds the <br>'s in.
What I do is do my HTML, then in my text editor, search and remove all the \r (every time I hit enter), then it formats correctly.
Donate to UBBDev today to help aid in Operational, Server and Script Maintenance, and Development costs.
Please also see our parent organization VNC Web Services if you're in the need of a new UBB.threads Install or Upgrade, Site/Server Migrations, or Security and Coding Services.