diff --git a/src/app/components/shared/_dialogs/present-comment/present-comment.component.html b/src/app/components/shared/_dialogs/present-comment/present-comment.component.html
index 2e56acb91825f699a99a59066fe8c419c77527ea..e24779e17cf6ec0b48ea83488971abdca549817c 100644
--- a/src/app/components/shared/_dialogs/present-comment/present-comment.component.html
+++ b/src/app/components/shared/_dialogs/present-comment/present-comment.component.html
@@ -1,5 +1,5 @@
-<mat-slider min="2.1" max="6" step="0.2" value="1.2" thumbLabel tickInterval="auto"
-            [(ngModel)]="sliderValue" (change)="updateFontSize()" id="slider"></mat-slider>
+<mat-slider min="1" max="2" step="0.1" thumbLabel tickInterval="auto"
+            (input)="updateFontSize($event)" id="slider"></mat-slider>
 <button id="exitButton" mat-raised-button color="warn" (click)="onCloseClick()">
   <mat-icon >exit_to_app</mat-icon>
 </button>
diff --git a/src/app/components/shared/_dialogs/present-comment/present-comment.component.ts b/src/app/components/shared/_dialogs/present-comment/present-comment.component.ts
index c03c846cc3cde94e77ddda67ca6f66d1c977ee96..db98ecce3f438a190adff9d0ac4e9a8a86f6f084 100644
--- a/src/app/components/shared/_dialogs/present-comment/present-comment.component.ts
+++ b/src/app/components/shared/_dialogs/present-comment/present-comment.component.ts
@@ -9,7 +9,6 @@ import { TranslateService } from '@ngx-translate/core';
 })
 export class PresentCommentComponent implements OnInit {
   public body: string;
-  sliderValue = 0;
 
   constructor(
     public dialogRef: MatDialogRef<PresentCommentComponent>,
@@ -25,8 +24,7 @@ export class PresentCommentComponent implements OnInit {
     this.dialogRef.close('close');
   }
 
-  private updateFontSize(): void {
-     console.log(this.sliderValue);
-     document.getElementById('comment').style.fontSize = this.sliderValue + 'em';
+  private updateFontSize(event: any): void {
+     document.getElementById('comment').style.fontSize = (event.value * 2.5) + 'em';
   }
 }
diff --git a/src/app/components/shared/comment/comment.component.ts b/src/app/components/shared/comment/comment.component.ts
index ea3a50f65b7f9b9412279b263ba3aff8c7a39b58..64098002ef8eee3961fad84784c77f58a204739c 100644
--- a/src/app/components/shared/comment/comment.component.ts
+++ b/src/app/components/shared/comment/comment.component.ts
@@ -110,7 +110,20 @@ export class CommentComponent implements OnInit {
     });
   }
 
+  goToFullScreen(element: Element): void {
+    if (element.requestFullscreen) {
+      element.requestFullscreen();
+    }
+  }
+
+  exitFullScreen(): void {
+    if (document.exitFullscreen) {
+      document.exitFullscreen();
+    }
+  }
+
   openPresentDialog(comment: Comment): void {
+    this.goToFullScreen(document.documentElement);
     if (this.isStudent === false) {
       this.wsCommentService.highlight(comment);
     }
@@ -128,9 +141,8 @@ export class CommentComponent implements OnInit {
     dialogRef.afterClosed()
       .subscribe(result => {
         this.wsCommentService.lowlight(comment);
-        if (result === 'close') {
-          return;
-        }
+        this.exitFullScreen();
+
       });
   }
 }