diff --git a/auth/login.php b/auth/login.php
index 9dba584..735bdd9 100644
--- a/auth/login.php
+++ b/auth/login.php
@@ -41,30 +41,38 @@
             </div>
         </nav>
 
-    <main>
-    <div style="width: 50%">
-        <div style="width: 130px;">
-            <img src="../images/logo.png" alt="" width="120" height="72">
-        </div>
+    <main class="login-page">
+        <div class="login-container">
+            <div class="logo-wrapper">
+                <img src="../images/logo.png" alt="Logo" class="login-logo">
+            </div>
 
-        <h1 style="width: 60%; text-align: center">Bitte anmelden</h1><br>
+            <h1>Bitte anmelden</h1>
 
-        <label id="inputEmail" >E-Mail-Adresse / </label>
-        <p style="width: 80%;">Benutzername/E-Mail-Adresse:</p>
-        <input type="email" name="email" style="width: 80%;" placeholder="E-Mail-Adresse" required autofocus>
-        <p style="width: 80%;">Passwort:</p>
-        <input type="password" name="password" style="width: 80%;" placeholder="Passwort" required>
-        <div style="width: 80%;">
-            <label>
-                <input type="checkbox" name="remember-me" value="1"> angemeldet bleiben
-            </label>
+            <form>
+                <label id ="inputEmail" class="screenreader-only">E-Mail Adresse / </label>
+                
+                <p class="input-label">Benutzername/E-Mail-Adresse:</p>
+                <input type="email" name="email" class="login-input" placeholder="E-Mail-Adresse" required autofocus>
+            
+                <p class="input-label">Passwort:</p>
+                <input type="password" name="password" class="login-input" placeholder="Passwort" required>
+            
+                <div class="checkbox-wrapper">
+                    <label>
+                        <input type="checkbox" name="remember-me" value="1"> angemeldet bleiben
+                    </label>
+                </div>
+            
+                <button type="submit" value="anmelden" name="loginSubmit" class="login-button">anmelden</button>
+            
+                <div class="register-link">
+                    <a href="register.php">Noch keinen Account? Jetzt hier registrieren!</a>
+                </div>
+            </form>
         </div>
-        <button type="submit" value="anmelden" name="loginSubmit" style="width: 80%;">anmelden</button><br>
-        <div style="width: 70%; text-align: center">
-            <a href="register.php" style="text-align: center;"> Noch keinen Account? Jetzt hier registrieren! </a>
-        </div>
-    </div>
     </main>
+
     <footer style="position:fixed;bottom:0;width:100%;background:#fff;text-align:center;">
         <a href="../legal/impressum.php">Impressum</a>
         <a href="../legal/datenschutz.php">Datenschutz</a>
diff --git a/auth/register.php b/auth/register.php
index d154634..67faab5 100644
--- a/auth/register.php
+++ b/auth/register.php
@@ -41,31 +41,38 @@
         </div>
     </nav>
 
-    <main>
-    <div style="width: 50%">
-        <div style="width: 130px;">
-            <img src="../images/logo.png" alt="" width="120" height="72">
+    <main class="login-page">
+        <div class="login-container">
+            <div class="logo-wrapper">
+                <img src="../images/logo.png" alt="Logo" class="login-logo">
+            </div>
+
+            <h1>Jetzt Registrieren!</h1>
+
+            <form>
+                <p class="input-label">Email:</p>
+                <input type="email" name="email" class="login-input" placeholder="mustermann@web.de" required>
+            
+                <p class="input-label">Vorname:</p>
+                <input type="text" name="vorname" class="login-input" placeholder="Max" required>
+            
+                <p class="input-label">Nachname:</p>
+                <input type="text" name="nachname" class="login-input" placeholder="Mustermann" required>
+
+                <p class="input-label">Passwort:</p>
+                <input type="password" name="password" class="login-input" placeholder="Passwort" required>
+            
+                <div class="checkbox-wrapper">
+                    <label>
+                        <input type="checkbox" value="remember-me"> angemeldet bleiben
+                    </label>
+                </div>
+            
+                <button type="submit" value="anmelden" name="loginSubmit" class="login-button">kostenlos registrieren</button>
+            </form>
         </div>
-
-        <h1 style="width: 50%; text-align: center">Jetzt Registrieren!</h1><br>
-
-        <p style="width: 80%;"> Email:</p>
-        <input type="email" name="email"  style="width: 80%;" placeholder="mustermann@web.de" required>
-        <p  style="width: 80%;"> Vorname:</p>
-        <input type="text" name="vorname"  style="width: 80%;" placeholder="Max" required>
-        <p  style="width: 80%;"> Nachname:</p>
-        <input type="text" name="nachname"  style="width: 80%;" placeholder="Mustermann" required>
-
-        <p  style="width: 80%;"> Passwort:</p>
-        <input type="password" name="password"  style="width: 80%;" placeholder="Passwort" required>
-        <div style="width: 80%;">
-            <label>
-                <input type="checkbox" value="remember-me"> angemeldet bleiben
-            </label>
-        </div>
-        <button type="submit" value="anmelden" name="loginSubmit" style="width: 80%;">kostenlos registrieren</button>
-    </div>
     </main>
+
     <footer style="position:fixed;bottom:0;width:100%;background:#fff;text-align:center;">
         <a href="../legal/impressum.php">Impressum</a>
         <a href="../legal/datenschutz.php">Datenschutz</a>
diff --git a/content/home.php b/content/home.php
index f862a98..fd035f5 100644
--- a/content/home.php
+++ b/content/home.php
@@ -13,22 +13,28 @@
         sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no
         sea takimata sanctus est Lorem ipsum dolor sit amet.
     </p>
-    <div>
-    <a href = "content/informatik.php" style = "padding: 5px; text-align: center; text-decoration: none; display: inline-block;"><b>Informatik</b></a> <br>
-    <div>
-        <a href="articles/datenschutz.php">Datenschutz vs. Datensicherheit</a>
-    </div>
-    </div>
-    <div>
-    <a href = "content/mathe.php" style = "padding: 5px; text-align: center; text-decoration: none; display: inline-block;"><b>Mathe</b></a> <br>
-    <div>
-        <a href="articles/pythagoras.php">Satz des Pythagoras</a>
-    </div>
-    </div>
-    <div>
-    <a href = "content/physik.php" style = "padding: 5px; text-align: center; text-decoration: none; display: inline-block;"><b>Physik</b></a>
-    <div>
-        <a href="articles/tunneleffekt.php">Der Tunneleffekt</a>
-    </div>
+
+    <!-- Flexbox -->
+     <div class="flexbox">
+        <div class="container">
+            <a href="content/informatik.php" class="category-link">Informatik</a>
+            <div class="article-link">
+                <a href="articles/datenschutz.php">Datenschutz vs. Datensicherheit</a>
+            </div>
+        </div>
+
+        <div class="container">
+            <a href="content/mathe.php" class="category-link">Mathe</a>
+            <div class="article-link">
+                <a href="articles/pythagoras.php">Satz des Pythagoras</a>
+            </div>
+        </div>
+        
+        <div class="container">
+            <a href="content/physik.php" class="category-link">Physik</a>
+            <div class="article-link">
+                <a href="articles/tunneleffekt.php">Der Tunneleffekt</a>
+            </div>
+        </div>
     </div>
 </main>
\ No newline at end of file
diff --git a/css/main.css b/css/main.css
index c9f08fb..9a4ba39 100644
--- a/css/main.css
+++ b/css/main.css
@@ -1,3 +1,129 @@
+
+main {
+  max-width:1200px;
+  margin: 0 auto;
+  padding: 20px;
+  font-family: Arial;
+}
+
+.flexbox {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+  margin-top: 30px;
+}
+
+.container {
+  border: 1px solid white;
+  padding: 15px;
+  border-radius: 8px;
+  background-color: coral;
+  transition: transform 0.2s;
+}
+
+.category-link {
+  display: block;
+  text-align: left;
+  text-decoration: none;
+  font-weight: bold;
+  padding: 10px;
+  background-color: blue;
+  color: white;
+  border-radius: 4px;
+  margin-bottom: 10px;
+}
+
+.article-link a {
+  color: blue;
+  text-decoration: none;
+}
+
+
+@media (min-width: 1024px) {
+  .container {
+    padding: 25px;
+  }
+}
+
+/* Seite wird horizontal und vertikal zentriert */
+.login-page {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    min-height: 80vh;
+}
+
+
+.login-container {
+    width: 90%;
+    max-width: 450px;
+    padding: 30px;
+    border: 1px solid white;
+    border-radius: 10px;
+    background-color: white;
+}
+
+.logo-wrapper {
+    text-align: center;
+    margin-bottom: 20px;
+}
+
+.login-logo {
+    width: 120px;
+    height: auto;
+}
+
+.login-container h1 {
+    text-align: center;
+    margin-bottom: 25px;
+    font-size: 1.5rem;
+}
+
+.input-label {
+    margin-bottom: 5px;
+    font-weight: bold;
+    width: 100%;
+}
+
+.login-input {
+    width: 100%;
+    padding: 12px;
+    margin-bottom: 20px;
+    border: 1px solid white;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+.checkbox-wrapper {
+    margin-bottom: 20px;
+}
+
+.login-button {
+    width: 100%;
+    padding: 12px;
+    background-color: blue;
+    color: white;
+    border: none;
+    border-radius: 4px;
+    font-size: 1rem;
+    cursor: pointer;
+}
+
+.login-button:hover {
+    background-color: blue;
+}
+
+.register-link {
+    margin-top: 20px;
+    text-align: center;
+    font-size: 0.9rem;
+}
+
+/* Versteckt das doppelte Label fuer Screenreader/Accessibility */
+.screenreader-only {
+  display: none;
+}
+
 body {
   background-color: coral;
 }
\ No newline at end of file