In the Author mode, you can control the amount of displayed markup using the following dedicated actions from the toolbar:
Full Tags
with Attributes
Full
Tags
Block
Tags
Inline
Tags
Partial
Tags
No
TagsTo set a default mode of the tags mode, go to Author preferences page and configure the Tags display mode mode. However, if the document opened in Author editor does not have an associated CSS stylesheet, then the Full Tags mode will be used.
Block-level elements are those elements of the source document that are formatted visually as blocks (e. g. paragraphs), while the inline level elements are distributed in lines (e. g. emphasizing pieces of text within a paragraph, inline images, etc). The graphical format of the elements is controlled from the CSS sources via the display property.