This article is related to PromoteMyPlace Version 2 only. Not sure which version of the application you're using? See Which version of PromoteMyPlace am I using?
The components option in the page builder shows lines around the individual elements of the page to make it easier to select the components you want and update their settings. These are just guides for editing and these lines will not show on your websites. If you want these lines to show whilst you create or edit your website select the component button
This will show the different elements with boxes around them
You can also select this button again to turn the lines off