how to allow span inside p (ckeditor) I have a paragragh which has 3 font colors throughout it, however every time I try to add the spans inside the paragraph CKEditor takes it upon it's self to remove them on me. How do I get the spans to stay inside the paragraph? 

I save this:

&lt;p&gt;Have &lt;span class="lt-blue-txt"&gt;TROUBLING SYMPTOMS&lt;/span&gt; and health concerns taken over your life? &lt;span class="white-txt"&gt;Muse can help&lt;/span&gt;.&lt;/p&gt;


but it turns into this:

&lt;p&gt;Have TROUBLING SYMPTOMS and health concerns taken over your life? Muse can help.&lt;/p&gt;
Did these links not help:

https://stackoverflow.com/questions/18349048/ckeditor-strips-span-and-style-attributes

"If you are using the CKeditor module then there is an option in Advanced Options that is also mentioned in the module homepage where you should set"

or:
Prevent WYSIWYG+CKEditor from stripping html classes
"There is an issue with CKEditor 4.1+, which has a feature called Automatic Content Filter (ACF) that will automatically strip attributes not defined for the editor"