jobs & experts WYSIWYG removes my styles

for some reason when my client enters any additional styling into the jobs & experts WYSIWYG the styles are removed from the post display.

For example:
<h2><span style="color: #0000ff;">Camp University Community Liaison</span></h2>
<span style="color: #0000ff;">POSTING DATE:</span> February 17, 2017

Becomes
<p>Camp University Community Liaison
POSTING DATE: February 17, 2017</p>

The <h2> turned into a <p> and the <span> elements are missing.

Is there a way to stop this from happening? Is there a reason WHY this is happening?
Thanks!

Here's a link to the page in question - http://nusd.org/job/camp-university-community-liaison/