In the Search Field type TinyMCE and press "Enter".
From the results, click the Editor - TinyMCE to enter the configuration page of the editor plugin.
From the plugin page, you will see three predefined configuration sets of Tiny MCE. On each Set there are specific settings that you can alter to meet your requirements and users' groups.
Select a Set and below you will find the Assign this Set to...
From this field you can set which user groups will bind to this set.
After you set your preferred user group (be careful not to set the same user group to more than one Set), you must set the Use Joomla Text Filter to "Off" setting so we can give the tags and attributes we want overriding default Joomla settings.
As you can see in the image below there are 3 fields. Prohibited Elements, Valid Elements and Extended Valid Elements.
Prohibited Elements
Any tag given in the Prohibited Element field, separated by comma (,) is wiped out on article save. So, in this field type anything you want to be sure is cut off.
Valid Elements
In this field you must type all html tags you allow to the user separated by comma (,)
For example, if we type: p,span,ul,li,a we give the user group the authorization to use ONLY those tags. Everything else will be copied as simple text.
Extended Valid Elements
In this field you can set which attributes are allowed to use. For example, if we want to secure that p elements will get only style and id attributes we will type:
p[style|id]
If we want to secure that the style setings will be only text-align we must change the above to:
p[style=text-align|id]
As with the Valid Elements, we separate the html tags with comma (,) so with the below:
p[style=text-align|id],a[href|target|class='primary-link']
...we point out that p tags can accept only text-align as their style, and they can have an id if provided, also the "a" tags can have the attributes href, target and class but the class attribute will force to have the class ".primary-link" even though it may not be provided by the user.
This approach allows you to customize filtering rules and make your filters as you wish!
