The editor can be accessed by going to the Content Pages Section
and than selecting any item out of the editable Contents. After clicking on the 'edit' button the Visual Style Editor opens up (as shown below)
The Visual Style Editor can be used as WYSIWUG (What You See Is What You Get) Editor or as plain html editor.
To choose between the two modes you may simply click on either the 'Visual Editor' or 'HTML Code' tab (as shown in the picture below)
for further information concerning the modes visit the follow up section in this chapter.