ng2-bootstrap-base-modified/demo/src/app/components/+accordion/demos/config/config.html

Native Angular Bootstrap Components Typeahead modified

<accordion>
  <accordion-group heading="Header">
    This content is straight in the template.
  </accordion-group>
  <accordion-group heading="Content 1">
    <p>Content 1</p>
  </accordion-group>
  <accordion-group heading="Content 2">
    <p>Content 2</p>
  </accordion-group>
</accordion>