You must use caution when pasting HTML from one design editor to another and the Mindmatrix software is no exception. If you are using a program, such as Dreamweaver, to generate the HTML- there are some best practices to use when pasting that code into the Mindmatrix software. 

• It is always a best practice to design emails using in-line styles. The editor and common ESPs such as Outlook will tend to reject many styles created in a stylesheet, and it can be risky since it may override some of your style content.
• Do not have to include the doctype or body tags. 
• Avoid using the 100% width attribute as the width value. This will expand the table to entire width of the screen. Use a container with a set width, such as a table with 640px and then within that table, use a td or other tables with percentag values to creat the borders and other rows or columns. 
• The design editor will always show you an outline of every table in the email. When you preview the email, the appearance will be closer to what you receive in the Inbox. 

Although you are able to use programs such as Dreamweaver to generate the HTML, but there will always been a clean up process once that code is pasted in. Always be sure to use in line styles and be careful about copying and pasting doctypes, body or html tags that are unnecessary into the editor. We suggest working with an email size less than or equal to 640px in width.

Please click here for more information about in-line styles.