How to use RESPONSIVE MENUBAR

I copied and pasted the code from [AMP Start](https://www.ampstart.com/components#navigation), but got the following:

Here is the code of the page:
```

body {
-webkit-animation: -amp-start 8s steps(1,end) 0s 1 normal both;
-moz-animation: -amp-start 8s steps(1,end) 0s 1 normal both;
-ms-animation: -amp-start 8s steps(1,end) 0s 1 normal both;
animation: -amp-start 8s steps(1,end) 0s 1 normal both
}

@-webkit-keyframes -amp-start {
from {
visibility: hidden
}

to {
visibility: visible
}
}

@-moz-keyframes -amp-start {
from {
visibility: hidden
}

to {
visibility: visible
}
}

@-ms-keyframes -amp-start {
from {
visibility: hidden
}

to {
visibility: visible
}
}

@-o-keyframes -amp-start {
from {
visibility: hidden
}

to {
visibility: visible
}
}

@keyframes -amp-start {
from {
visibility: hidden
}

to {
visibility: visible
}
}



body {
-webkit-animation: none;
-moz-animation: none;
-ms-animation: none;
animation: none
}

• 
  
  
  Fashion
  

  
  
  • 
    Styling Tips
    
  
  
  • 
    Designers
    
  
  
  
  
  

  
  



• 
  Travel
  



• 
  
  
  Food
  

  
  
  • Recipes
  
  
  • Hosting Tips
  
  
  
  
  

  
  



• 
  Beauty
  


• 
  Shop
  

```
Am I missing anything?

Start with the AMP Start navigation example linked in the issue and compare it with the posted HTML, especially the amp-sidebar and amp-accordion elements. Reproduce the screenshot; done means determining what is missing for the responsive menubar to render as intended.

Written by the indexing model from the issue text.