| <!doctype html> | 
 | <html> | 
 |   <head> | 
 |     <title>MathML fallback</title> | 
 |     <meta charset="utf-8"/> | 
 |     <style type="text/css"> | 
 |       span.mathblock { | 
 |         display: block; | 
 |         text-align: center; | 
 |       } | 
 |       span.annotation { | 
 |         display: inline-block; | 
 |       } | 
 |     </style> | 
 |   </head> | 
 |   <body> | 
 |  | 
 |     <p> | 
 |       <span> | 
 |         <span> | 
 |           <span>2</span> | 
 |           <span>x</span> | 
 |         </span> | 
 |       </span> | 
 |       <span class="mathblock"> | 
 |         <span> | 
 |           <span>2</span> | 
 |           <span>x</span> | 
 |         </span> | 
 |       </span> | 
 |     </p> | 
 |  | 
 |     <p> | 
 |       <span> | 
 |         <span> | 
 |           <span class="annotation">\frac{2}{x}</span> | 
 |         </span> | 
 |       </span> | 
 |       <span class="mathblock"> | 
 |         <span> | 
 |           <span class="annotation">\frac{2}{x}</span> | 
 |         </span> | 
 |       </span> | 
 |     </p> | 
 |  | 
 |     <p> | 
 |       <span> | 
 |         <span> | 
 |           <span class="annotation"><span><img src="data:image/png;base64,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" alt="2/x"/></span></span> | 
 |         </span> | 
 |       </span> | 
 |       <span class="mathblock"> | 
 |         <span> | 
 |           <span class="annotation"><span><img src="data:image/png;base64,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" alt="2/x"/></span></span> | 
 |         </span> | 
 |       </span> | 
 |     </p> | 
 |  | 
 |   </body> | 
 | </html> |