Icon Button Secondary: Loading

Refer to icon button frame found in view tab for complete structure without content. 
<button type="button" class="sds-btn -iconBtn -btnSecondary -btnIsLoading" disabled aria-label="Chargement en cours" aria-busy="true">

    <span aria-hidden="true" class="sds-icon sds-icon-adviser"></span>

    <span class="sr-only">Action text</span>

</button>
 
{% include "@icon-btn" %}