open-vault/ui/app/templates/components/alert-popup.hbs

<div class="message {{type.class}}">
  <div class="columns is-mobile is-variable is-1">
    <div class="column is-narrow message-icon">
      <Icon
        aria-hidden="true"
        @size="l"
        @glyph="{{type.glyph}}"
      />
    </div>
    <div class="column">
      <button type="button" class="close-button" {{action close}}>
        <Icon
          @glyph="cancel-plain"
          @aria-label="Close"
        />
      </button>
      <div class="message-title">
        {{type.text}}
      </div>
      {{#if message}}
        <p class="message-body {{if @isPreformatted 'pre'}}" data-test-flash-message-body="true">{{message}}</p>
      {{/if}}
    </div>
  </div>
</div>