title: Magento 2 - How to change htmlClass, htmlId attributes by referenceContainer or another way?
body: <p><a href="http://devdocs.magento.com/guides/v2.0/frontend-dev-guide/layouts/layout-override.html#info" rel="nofollow">In magento 2 Frontend developer guide</a>, I have read that : </p>
  
  <blockquote>
    <p>Certain attributes, like htmlClass, htmlId, label attributes can be
    changed in extending layouts</p>
  </blockquote>
  
  <p>I want to change htmlClass of the container defined in 1column.xml. Could you tell me how to do it by referenceContainer or another way ?</p>
  
  <p>I used : (both html_class &amp; htmlClass)</p>
  
  <pre><code>&lt;arguments&gt;
              &lt;argument name="html_class" xsi:type="string"&gt;sm-page-header&lt;/argument&gt;
  &lt;/arguments&gt;
  </code></pre>
  
  <p>but not affected</p>
  
  <p>Thanks!</p>