If you don’t know what you’re doing, you can really make a mess that may incur charges for WebSanity to clean it up.
Steps for editing HTML
Press Edit HTML Source to open the HTML Source Editor panel.
To toggle word wrapping, check or uncheck the box next to Word Wrap.
Make your changes to the HTML
WARNING: Be very careful—unless you know what you’re doing, you can cause major problems with your Page!
To close the window without making any changes, press Cancel.
When you’re ready to commit your changes, press Update.