cambio colore tasti login

login/templates/login.html

@@ -31,8 +31,8 @@
       <input type='password' class='form-control' id='passs' name='passs' value=''>
     </div>
     <div class='form-outline mb-3 text-center'>
-      <button type='submit' class='btn btn-primary btn-block btn-lg mb-3 active'>Login</button>
-      <button type='reset' class='btn btn-primary btn-block btn-lg mb-3'>Annulla</button>
+      <button type='submit' class='btn btn-success btn-block btn-lg mb-3 active'>Login</button>
+      <button type='reset' class='btn btn-light btn-block btn-lg mb-3'>Annulla</button>
     </div>
   </form>