<ul class="ui-list order-list">
{{#each model as |order|}}
  <li class="ui-list order-list__item">
    {{order-preview order=order}}
  </li>
{{/each}}
</ul>

<ul class="ui-list order-list">
{{#each model as |order|}}
  <li class="ui-list__item order-list__item">
    {{order-preview order=order}}
  </li>
{{/each}}
</ul>

Use .ui-list__item class for item
Use .ui-list__item class for item
