Allowing Raw HTML in Rich-Text Editors
By default, Catalog only allows "safe HTML" in rich-text fields (such as descriptions). There is no option to override this setting. However, you can alter various XML files to allow raw HTML to be saved and not automatically stripped.
The following files can be safely modified to support raw HTML input.
/administrator/components/com_catalog/models/forms/category.xml/administrator/components/com_catalog/models/forms/class.xml/administrator/components/com_catalog/models/forms/node.xml/administrator/components/com_catalog/models/forms/node_compare.xml/administrator/components/com_catalog/models/forms/taxon.xml
Please note that these files will be overwritten when you upgrade Catalog. You will need to reapply the changes to the new version after you upgrade. DO NOT take a copy of the old files and simply copy them back as you may accidentally delete other bug fixes or new features.
Open the required file in your programmers editor.
Find the XML field tag(s) that have a type of "textarea_editor".
Find the filter attribute in that tag.
Change it from "safehtml" to "raw".
Save your file.

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