diff --git a/webseite/assets/css/topic.css b/webseite/assets/css/topic.css
index 1f21a4a..1c9a1bf 100644
--- a/webseite/assets/css/topic.css
+++ b/webseite/assets/css/topic.css
@@ -208,14 +208,15 @@ body {
 
 /* List style improvement */
 .content-text li {
-    position: relative;
-    padding-left: 1.5rem;
+    margin-left: 1.5rem;
+    padding-left: 0.5rem;
     margin-bottom: 0.5rem;
 }
 
-.content-text li::before {
-    content: '•';
-    position: absolute;
-    left: 0;
-    font-weight: bold;
+.content-text ul li {
+    list-style-type: disc;
 }
+
+.content-text ol li {
+    list-style-type: decimal;
+}
\ No newline at end of file
diff --git a/webseite/classes/TopicData.php b/webseite/classes/TopicData.php
index 6c315ff..c8abeb4 100644
--- a/webseite/classes/TopicData.php
+++ b/webseite/classes/TopicData.php
@@ -1,8 +1,5 @@
 <?php
 
-use exception\SubjectDoesNotExistException;
-use exception\TopicAlreadyExistsException;
-
 require_once("Task.php");
 require_once("Config.php");
 require_once("Util.php");
diff --git a/webseite/topic.php b/webseite/topic.php
index e7b3ff3..2987008 100644
--- a/webseite/topic.php
+++ b/webseite/topic.php
@@ -122,9 +122,9 @@ if (!isset($topicData)) {
             <p class="content-text">
                 <?php echo($topicData->description); ?>
             </p>
-            <p class="content-text article-section">
+            <div class="content-text article-section">
                 <?php echo($topicData->getFinishedArticle()); ?>
-            </p>
+            </div>
 
             <div class="exercise-section bg-gray-100">
                 <h3 style="margin-bottom: 1rem;" class="text-[var(--primary-color)]">Übungen herunterladen:</h3>
diff --git a/webseite/topicEditor.php b/webseite/topicEditor.php
index 52f93f3..50a4062 100644
--- a/webseite/topicEditor.php
+++ b/webseite/topicEditor.php
@@ -75,7 +75,11 @@ if($_SERVER['REQUEST_METHOD'] == 'POST') {
 
             $relatedTopics = array();
             foreach (explode(",", $_POST['relatedTopics']) as $relatedTopic) {
-                $relatedTopics[] = trim($relatedTopic);
+                $relatedTopic = trim($relatedTopic);
+                if($relatedTopic == "") {
+                    continue;
+                }
+                $relatedTopics[] = $relatedTopic;
             }
             $newTopic->setRelatedTopics($relatedTopics);
             $newTopic->setArticle($_POST['article']);
@@ -103,7 +107,7 @@ if($_SERVER['REQUEST_METHOD'] == 'POST') {
     <title>Lehrer Dashboard</title>
 
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
-    <link href="assets/css/styles.css" rel="stylesheet">
+    <link href="assets/css/topic.css" rel="stylesheet">
     <link href="https://cdn.jsdelivr.net/npm/quill@2.0.3/dist/quill.snow.css" rel="stylesheet"/>
 
     <script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.2/gsap.min.js"></script>
@@ -203,7 +207,7 @@ if($_SERVER['REQUEST_METHOD'] == 'POST') {
 
     <div class="border rounded-lg p-8 mt-8 bg-gray-50">
         <h4 class="text-lg font-medium text-gray-700 mb-4">Vorschau</h4>
-        <div id="contentPreview" class="prose prose-lg max-w-none bg-white p-6 rounded-lg shadow-sm"></div>
+        <div id="contentPreview" class="content-text prose prose-lg max-w-none bg-white p-6 rounded-lg shadow-sm"></div>
     </div>
 
     <div class="flex justify-end gap-4">
@@ -213,7 +217,7 @@ if($_SERVER['REQUEST_METHOD'] == 'POST') {
         </button>
         <button type="submit"
                 class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700">
-            Thema erstellen
+            Speichern
         </button>
     </div>
 
@@ -254,7 +258,9 @@ if($_SERVER['REQUEST_METHOD'] == 'POST') {
     });
 
     quill.on('text-change', (delta, oldDelta, source) => {
-        const html = quill.getSemanticHTML().replace(/&nbsp;/g, " ");
+        let html = quill.getSemanticHTML().replace(/&nbsp;/g, " ");
+        html = html.replaceAll("<p></p>", "<br>");
+
         document.getElementById('contentPreview').innerHTML = html;
         document.getElementById('article-upload-field').value = html;
         renderFormulas();