HTML block is a long block of static text. It is used as a component that can be inserted into page layout position.
To create a HTML block
Go to "Contents" -- "HTMLBlocks"
Click "New" to create a new HTML block.
HTML block has two fields, a name and a body with richtext editor.
HTML block supports multilingual, for more information, refer to the Multilingual charpter.
To use HTML block on page, in the page design screen.
Click the "+" icon under page position, select "HTMLBlock".
In the opened window, select the right block for the position.