<element extends="div" is="x-nyandiv">
             <template>
               <img src="http://www.nyan.cat/cats/skrillex.gif" 
                       alt="wub">
               </img>
               <content select=".interesting_but_badly_formatted"></content>
             </template>
           </element>
           

           
           <div  is="x-nyandiv">
             <p class="interesting_but_badly_formatted"> blah blah blah </p>
             <img class="baby_photos_on_facebook" src="faceamothercouldlove.jpg"> 
             </img>
           <div>