A block represents a specific chunk of content. Each block contains a reusable piece of variable content. For example, a block can be a header area with an image and three columns of text. When you create the message, you fill the blocks with content.
When you create an email template or message, the framework determines which blocks are available. The code of the block defines which parts of the content are edited.
New systems have several default blocks for you to use.
You have complete access to the HTML code of the blocks. However, you need knowledge of email HTML to create or edit the HTML for a block successfully.
If you edit the code of a block, these changes automatically apply to all email templates and frameworks that use this block. However, changes that you make to a block do not affect messages that were previously created with the block.
