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third_party/polymer/components/iron-collapse/README.md

 
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@@ skipping 18 matching lines @@
   <div>Content goes here...</div>
 </iron-collapse>
 
 ...
 
 toggle: function() {
   this.$.collapse.toggle();
 }
 ```
 
-`iron-collapse` adjusts the height/width of the collapsible element to show/hide
+`iron-collapse` adjusts the max-height/max-width of the collapsible element to show/hide
 the content.  So avoid putting padding/margin/border on the collapsible directly,
 and instead put a div inside and style that.
 
 ```html
 <style>
   .collapse-content {
     padding: 15px;
     border: 1px solid #dedede;
   }
 </style>
 
 <iron-collapse>
   <div class="collapse-content">
     <div>Content goes here...</div>
   </div>
 </iron-collapse>
 ```