[attr.aria-expanded]="!isAdvancedCustomizationCollapsed" aria-controls="collapseBasic">
<ng-container *ngIf="isAdvancedCustomizationCollapsed">
- <span class="glyphicon glyphicon-menu-down"></span>
+ <span class="chevron-down"></span>
<ng-container i18n>
More customization
</ng-container>
<ng-container *ngIf="!isAdvancedCustomizationCollapsed">
- <span class="glyphicon glyphicon-menu-up"></span>
+ <span class="chevron-up"></span>
<ng-container i18n>
Less customization