Images disappearing in "key feature" html module

I edited the html custom module named "The Key Features" in the Startup template and the images disappeared.
When I paste the correct html code and press save it is rewritten by joomla from this:

<div class="gkFeatures gkPerspective">
<a href="#" class="gkRocket" data-animation="flip" data-delay="0"><span>Rocket</span>Innovative Design</a>
<a href="#" class="gkBadge" data-animation="flip" data-delay="150"><span>Badge</span>Award-winning Agency</a>
<a href="#" class="gkMouse" data-animation="flip" data-delay="300"><span>Mouse</span>Your ideas, imagination</a>
<a href="#" class="gkPiggy" data-animation="flip" data-delay="450"><span>Piggy</span>Save Your Time &amp; Money</a>
</div>
<a href="#">View Full Features</a>

to this:

<div class="gkFeatures gkPerspective"><a class="gkRocket" href="#" data-animation="flip" data-delay="0">RocketInnovative Design</a> <a class="gkBadge" href="#" data-animation="flip" data-delay="150">BadgeAward-winning Agency</a> <a class="gkMouse" href="#" data-animation="flip" data-delay="300">MouseYour ideas, imagination</a> <a class="gkPiggy" href="#" data-animation="flip" data-delay="450">PiggySave Your Time &amp; Money</a></div>
<p><a href="#">View Full Features</a></p>


It looks as if the <span> commands are removed. The end result is that the images disappeared. Can you please take a look: test.adooa.co.uk

thanks

Hi,
but it's not our fault.
Use No Editor mode when you're editing this module.
Each TinyMCE or JCE sometimes can "fix" html code, even when you do not need this.