diff --git a/src/app/shared/components/expandable/expandable.component.html b/src/app/shared/components/expandable/expandable.component.html
index bf2c334..d952ee5 100644
--- a/src/app/shared/components/expandable/expandable.component.html
+++ b/src/app/shared/components/expandable/expandable.component.html
@@ -11,19 +11,18 @@
 * SPDX-License-Identifier: EPL-2.0
 ********************************************************************************/ -->
 <div class="panel panel-default" style="width:100%;">
-    <div class="panel-heading">
-        <h4 class="panel-title">
-        <a data-toggle="collapse">
-            <i *ngIf="isExpandedStatus" class="fa fa-chevron-up" aria-hidden="true"></i>
-            <i *ngIf="!isExpandedStatus" class="fa fa-chevron-down" aria-hidden="true"></i>
-        </a>
-        <a data-toggle="collapse" href="#{{collapseId}}" (click)="isExpandedStatus = !isExpandedStatus">
-            <ng-content select="[header]"></ng-content>
-        </a>
-
-        </h4>
-    </div>
-    <div *ngIf="isExpandedStatus" id="{{collapseId}}" class="collapse5 panel-collapse collapse in" [ngClass]="{'in': !isStatusCollapsed }">
-        <ng-content class="bodyContent" select="[body]"></ng-content>
-    </div>
+  <div class="panel-heading">
+    <h4 class="panel-title">
+      <a data-toggle="collapse">
+        <em *ngIf="isExpandedStatus" class="fa fa-chevron-up" aria-hidden="true"></em>
+        <em *ngIf="!isExpandedStatus" class="fa fa-chevron-down" aria-hidden="true"></em>
+      </a>
+      <a data-toggle="collapse" href="#{{ collapseId }}" (click)="isExpandedStatus = !isExpandedStatus">
+        <ng-content select="[header]"></ng-content>
+      </a>
+    </h4>
+  </div>
+  <div *ngIf="isExpandedStatus" id="{{ collapseId }}" class="collapse5 panel-collapse collapse in" [ngClass]="{ in: !isStatusCollapsed }">
+    <ng-content class="bodyContent" select="[body]"></ng-content>
+  </div>
 </div>
diff --git a/src/app/shared/components/list-details-view/user-module-assignment/details/details.component.html b/src/app/shared/components/list-details-view/user-module-assignment/details/details.component.html
index d88aa5e..013a253 100644
--- a/src/app/shared/components/list-details-view/user-module-assignment/details/details.component.html
+++ b/src/app/shared/components/list-details-view/user-module-assignment/details/details.component.html
@@ -61,7 +61,7 @@
       <div class="input-group col-sm-7">
         <div class="input-group-prepend">
           <button class="btn btn-outline-primary calendar" (click)="deletionLockUntilCalendar.toggle()" type="button">
-            <i class="fa fa-calendar"></i>
+            <em class="fa fa-calendar"></em>
           </button>
         </div>
         <input
@@ -79,7 +79,7 @@
         />
         <div class="input-group-append">
           <button class="btn btn-outline-primary calendar" (click)="reset('deletionLockUntil')" type="button">
-            <i class="fa fa-times-circle" aria-hidden="true"></i>
+            <em class="fa fa-times-circle" aria-hidden="true"></em>
           </button>
         </div>
       </div>