In Opencart how to force CKEditor to stop "correcting" or stripping my HTML code?

I am using OpenCart 2 with CkEditor. When I manually make adjustments to HTML code and save it, CKEditor messes up the code and tries to correct it on its own. One example is when I write the following code:
<span class="Scopri-right"><h2>hai dei prodotti, servizi o eventi da proporre?</h2></span>

Open in new window

after I save it, CKEditor changes it to:
<h2><span class="Scopri-right">hai dei prodotti, servizi o eventi da proporre?</span></h2>

Open in new window

I saw some suggestions on the internet about how to force CKEditor to allow for customizations, so in /admin/view/javascript/ckeditor/ I adjusted two lines in the config.js to:
// Comment out or remove the 2 lines below if you want to enable the Advanced Content Filter	
config.allowedContent = true;
config.extraAllowedContent = 'span;ul;li;h1;h2;h3;h4;br;p;table;td;style;*[id];*(*);*{*}';	

Open in new window

It is still not behaving as I want it to. Could anyone suggest how I might ensure that the CKEditor does not change any code I set by hand?

thanks in advance
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Hi are you looking for something like this plugin

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
badwolfffAuthor Commented:
Thanks, I will buy this and try it next week when I get back in office and let you know how it goes.
Ok have a nice weekend
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.