Anchors are covered here in THE MANUAL.

Anchors are targets for navigation within pages. For example, this link points to the "Links" paragraph above. To point at some anchor on some page use the anchor name, preceding by # character at the end of the page. SEE HERE

To put an invisible anchor somewhere on your page use the following syntax:

See an example of the use of anchors here Integrated Learning Therapy
and here Anuko Formatting Tags

PLEASE CLICK ON THE AMETHYST BELOW TO ASK A QUESTION