Email template problems

i’m using a themplate I made in mailchimp but after I click save the template is changed example part of the template below.

is there a way to fix this?

after save

<td width="100%" xss=removed class="fullCenter" mc:edit="11">
              © 2017 All rights Reserved - Prismix.be
               </td>

before

<td width="100%" style="text-align: center; font-family: Helvetica, Arial, sans-serif, 'Open Sans'; font-size: 12px; color: #a1a6a7; font-weight: 400;" class="fullCenter" mc:edit="11">
	                	© 2017 All rights Reserved - Prismix.be
	                  </td>