diff --git a/src/contents/model.tsx b/src/contents/model.tsx
index 6f540262e723cc798023ebd383fb92be60a6d784..efda872d8c92b0af792b227d4a05faa3c5acbd71 100644
--- a/src/contents/model.tsx
+++ b/src/contents/model.tsx
@@ -207,8 +207,8 @@ export function Model() {
                   <div className='indent formula_content'>
                   <span className = 'formula_line'>
                       <MathJax.Node formula={`ES = \\frac{ {[E\\_total][S]} }{K_M + [S]}`} />  </span>                 
-                  </div>
-                  <span className='formula_number'>11</span>
+              
+                  <span className='formula_number'>11</span>    </div>
               </MathJax.Provider>  
 
 <p>The rate of product formation is