diff --git a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
index baffef3..aa663c1 100644
--- a/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
+++ b/src/main/java/mops/gruppen2/controller/Gruppen2Controller.java
@@ -164,6 +164,7 @@ public class Gruppen2Controller {
     @PostMapping("/detailsBeitreten")
     public String joinGroup(KeycloakAuthenticationToken token, Model model, @RequestParam("id") Long groupId) throws EventException {
         model.addAttribute("account", keyCloakService.createAccountFromPrincipal(token));
+
         Account account = keyCloakService.createAccountFromPrincipal(token);
         User user = new User(account.getName(), account.getGivenname(), account.getFamilyname(), account.getEmail());
         Group group = userService.getGroupById(groupId);
@@ -228,12 +229,15 @@ public class Gruppen2Controller {
     @PostMapping("/details/members/changeRole")
     public String changeRole(KeycloakAuthenticationToken token, @RequestParam("group_id") Long groupId,
                              @RequestParam("user_id") String userId) throws EventException {
+        Account account = keyCloakService.createAccountFromPrincipal(token);
         controllerService.updateRole(userId, groupId);
+        if(userId.equals(account.getName())) return "redirect:/gruppen2/details/" + groupId;
         return "redirect:/gruppen2/details/members/" + groupId;
     }
 
     @RolesAllowed({"ROLE_orga", "ROLE_studentin", "ROLE_actuator)"})
     @PostMapping("/details/members/deleteUser")
+
     public String deleteUser(KeycloakAuthenticationToken token, @RequestParam("group_id") Long groupId,
                              @RequestParam("user_id") String userId) throws EventException {
         controllerService.deleteUser(userId, groupId);
diff --git a/src/main/java/mops/gruppen2/domain/User.java b/src/main/java/mops/gruppen2/domain/User.java
index 08ff119..7b961c4 100644
--- a/src/main/java/mops/gruppen2/domain/User.java
+++ b/src/main/java/mops/gruppen2/domain/User.java
@@ -3,14 +3,16 @@ package mops.gruppen2.domain;
 import lombok.AllArgsConstructor;
 import lombok.EqualsAndHashCode;
 import lombok.Getter;
+import lombok.NoArgsConstructor;
 
 @Getter
 @AllArgsConstructor
+@NoArgsConstructor
 @EqualsAndHashCode(exclude = {"givenname", "familyname", "email"})
 public class User {
 
-    private final String id;
-    private final String givenname;
-    private final String familyname;
-    private final String email;
+    private  String id;
+    private  String givenname;
+    private  String familyname;
+    private  String email;
 }
diff --git a/src/main/java/mops/gruppen2/service/GroupService.java b/src/main/java/mops/gruppen2/service/GroupService.java
index 3b3ff54..f7b5d62 100644
--- a/src/main/java/mops/gruppen2/service/GroupService.java
+++ b/src/main/java/mops/gruppen2/service/GroupService.java
@@ -1,6 +1,7 @@
 package mops.gruppen2.service;
 
 import mops.gruppen2.domain.Group;
+import mops.gruppen2.domain.User;
 import mops.gruppen2.domain.dto.EventDTO;
 import mops.gruppen2.domain.event.Event;
 import mops.gruppen2.domain.exception.EventException;
@@ -66,11 +67,11 @@ public class GroupService {
         return groups.get(groupId);
     }
 
-    private List<Long> removeUserGroups(List<Long> groupIds, List<Long> userGroups) {
-        for (Long groupId : userGroups) {
-            groupIds.remove(groupId);
+    private List<Group> removeUserGroups(List<Group> visibleGroups, List<Group> userGroups) {
+        for (Group group : userGroups) {
+            visibleGroups.remove(group);
         }
-        return groupIds;
+        return visibleGroups;
     }
 
     /**
@@ -81,10 +82,18 @@ public class GroupService {
      * @throws EventException Projektionsfehler
      */
     public List<Group> getAllGroupWithVisibilityPublic(String userId) throws EventException {
-        List<Long> groupIds = removeUserGroups(eventRepository.findGroup_idsWhereVisibility(Boolean.TRUE), eventRepository.findGroup_idsWhereUser_id(userId));
-        List<EventDTO> eventDTOS = eventRepository.findAllEventsOfGroups(groupIds);
-        List<Event> events = eventService.translateEventDTOs(eventDTOS);
-        return projectEventList(events);
+        User user = new User(userId,null, null, null);
+        List<Event> eventsVisible = eventService.translateEventDTOs(eventRepository.findAllEventsOfGroups(eventRepository.findGroup_idsWhereVisibility(Boolean.TRUE)));
+        List<Group> visibleGroups = projectEventList(eventsVisible);
+        List<Event> eventsUser = getGroupEvents(eventRepository.findGroup_idsWhereUser_id(userId));
+        List<Group> groups = projectEventList(eventsUser);
+        List<Group> newGroups = new ArrayList<>();
+        for (Group group : groups) {
+            if (group.getMembers().contains(user)) {
+                newGroups.add(group);
+            }
+        }
+        return removeUserGroups(visibleGroups, newGroups);
     }
 
 
diff --git a/src/main/resources/templates/create.html b/src/main/resources/templates/create.html
index 3c321a8..65901cf 100644
--- a/src/main/resources/templates/create.html
+++ b/src/main/resources/templates/create.html
@@ -34,8 +34,8 @@
             <div class="col-10">
                 <h1>Gruppenerstellung</h1>
                 <form method="post" action="/gruppen2/createGroup">
-                    <div class="shadow p-2"
-                         style=" border: 10px solid aliceblue; background: aliceblue">
+                    <div class="shadow p-2" style=" border: 10px solid aliceblue; border-radius: 5px; background: aliceblue">
+
                         <div class="form-group">
                             <label for="titel">Titel</label>
                             <input class="form-control" id="titel" required th:name="title"
diff --git a/src/main/resources/templates/detailsMember.html b/src/main/resources/templates/detailsMember.html
index 7001e33..593bff5 100644
--- a/src/main/resources/templates/detailsMember.html
+++ b/src/main/resources/templates/detailsMember.html
@@ -31,8 +31,7 @@
 <main th:fragment="bodycontent">
     <div class="container-fluid">
         <div class="row">
-            <div class="col-9 shadow-sm p-4"
-                 style="border: 10px solid aliceblue; background: aliceblue">
+            <div class="col-9 shadow-sm p-4" style="border: 10px solid aliceblue;  border-radius: 5px; background: aliceblue">
                 <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
                 <h3>
                     <span class="badge badge-pill badge-dark" style="background: darkslategray"
diff --git a/src/main/resources/templates/detailsNoMember.html b/src/main/resources/templates/detailsNoMember.html
index 5d5684a..94d2373 100644
--- a/src/main/resources/templates/detailsNoMember.html
+++ b/src/main/resources/templates/detailsNoMember.html
@@ -31,8 +31,7 @@
     <div class="container-fluid">
         <div class="row">
             <div class="col-9">
-                <div class="shadow-sm p-4"
-                     style="border: 10px solid aliceblue; background: aliceblue">
+                <div class="shadow-sm p-4" style="border: 10px solid aliceblue; border-radius: 5px; background: aliceblue">
                     <h1 style="color: black; font-weight: bold" th:text="${group.getTitle()}"></h1>
                     <h3>
                         <span class="badge badge-pill badge-dark" style="background: darkslategray"
diff --git a/src/main/resources/templates/editMembers.html b/src/main/resources/templates/editMembers.html
index 0ef5fab..bedf91a 100644
--- a/src/main/resources/templates/editMembers.html
+++ b/src/main/resources/templates/editMembers.html
@@ -67,11 +67,10 @@
                         <tr>
                             <th scope="col">Mitglied</th>
                             <th scope="col" style="width: 180px">Rolle</th>
-                            <th scope="col" style="width: 270px">Optionen</th>
+                            <th scope="col" >Optionen</th>
                         </tr>
                         </thead>
                         <tbody class="table-striped">
-
                         <tr th:each="member : ${group.getMembers()}">
                             <th th:text="${member.getId()}"></th>
                             <td>
@@ -84,7 +83,7 @@
                                            type="hidden">
                                     <input th:name="user_id" th:value="${member.getId()}"
                                            type="hidden">
-                                    <button class="btn btn-warning btn-sm" type="submit">Rolle
+                                    <button  class="btn btn-warning btn-sm" type="submit">Rolle
                                         ändern
                                     </button><!-- th:if -->
                                 </form>
@@ -93,7 +92,7 @@
                                            type="hidden">
                                     <input th:name="user_id" th:value="${member.getId()}"
                                            type="hidden">
-                                    <button class="btn btn-danger btn-sm">Mitglied entfernen
+                                    <button th:if='${member.getId() != account.getName()}' class="btn btn-danger btn-sm">Mitglied entfernen
                                     </button>
                                 </form>
                             </td>
diff --git a/src/main/resources/templates/error.html b/src/main/resources/templates/error.html
index 5ea8655..87383ce 100644
--- a/src/main/resources/templates/error.html
+++ b/src/main/resources/templates/error.html
@@ -10,7 +10,7 @@
     <title>Seite nicht gefunden</title>
 </head>
 <body>
-<div class="mx-auto" style="vertical-align: center; horiz-align: center; top: 50%; left: 50%;">
+<div class="mx-auto" style="vertical-align: border-radius: 5px; center; horiz-align: center; top: 50%; left: 50%;">
     <div class="jumbotron" style="background: aliceblue">
         <div class="container">
             <h1 class="display-3">UPSI</h1>
@@ -31,4 +31,4 @@
     </div>
 </div>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/src/main/resources/templates/index.html b/src/main/resources/templates/index.html
index cf38815..6089e2f 100644
--- a/src/main/resources/templates/index.html
+++ b/src/main/resources/templates/index.html
@@ -45,7 +45,7 @@
                     </h3>
                     <br>
                     <div th:each="gruppe: ${gruppen}">
-                        <div class="shadow-sm p-4" style="border: none; background: aliceblue">
+                        <div class="shadow-sm p-4" style="border: none; border-radius: 5px; background: aliceblue">
                             <h3 style="color: dodgerblue; font-weight: bold;">
                                 <a th:href="@{/gruppen2/details/{id}(id=${gruppe.getId()})}"
                                    th:text="${gruppe.getTitle()}"></a>
diff --git a/src/main/resources/templates/search.html b/src/main/resources/templates/search.html
index 0d41f05..1a9b51c 100644
--- a/src/main/resources/templates/search.html
+++ b/src/main/resources/templates/search.html
@@ -33,7 +33,7 @@
             <div class="col-10">
                 <h1>Gruppensuche</h1>
                 <form action="/gruppen2/findGroup" method="get">
-                    <div class="shadow" style="border: 10px solid aliceblue; background: aliceblue">
+                    <div class="shadow" style="border: 10px solid aliceblue; border-radius: 5px; background: aliceblue">
                         <div class="form-group">
                             <label for="suchleiste">Suchbegriff:</label>
                             <input class="form-control" id="suchleiste"