.Menü_button{
  font-size:30px;
  cursor:pointer;
  text-align: center;
  color:black;
  font-weight: 600;
  background-color: whitesmoke;
  border: solid black 8px;
  border-radius: 10px;
  margin: auto;
  text-align: center;
  transition: 500ms;
  width: 200px;
  margin-bottom: 40px;
}

.Seitenüberschrift{
  text-align: center;
  font-size: 40px; 
  font-weight: 800;
  color: whitesmoke;
  transition: 500ms;
  background-color: black;
  margin: auto;
  margin-top: 0px;
  margin-bottom: 40px;
  padding-top: 10px;
  padding-bottom: 10px;
  width: 100%;
}
.overlay {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: rgb(7, 138, 143);
    overflow-x: hidden;
    transition: 0.5s;
  }
  
  .overlay-content {
    position: relative;
    top: 25%;
    width: 100%;
    text-align: center;
    margin-top: 30px;
  }
  
  .overlay a {
    padding: 8px;
    text-decoration: none;
    font-size: 36px;
    color: #dddada;
    display: block;
    transition: 0.3s;
  }
  
  .overlay a:hover, .overlay a:focus {
    color: #020202;
    background-color: rgb(255, 255, 255);
  }
  
  .overlay .closebtn {
    position: absolute;
    top: 20px;
    right: 45px;
    font-size: 60px;
  }

  .nav_bar {
    display: none;
  }
  
  @media screen and (max-height: 450px) {
    .overlay a {font-size: 20px}
    .overlay .closebtn {
    font-size: 40px;
    top: 15px;
    right: 35px;
    }
  }



  @media screen and (min-width: 1600px){     
    .Seitenüberschrift {
      font-size: 60px;
      transition: 500ms;
      background-color: black;
      margin-left: 300px;
      margin-right: 300px;
      border-radius: 100px;
      color: whitesmoke;
      width: 60%;
      margin: auto;
      padding-top: 30px;
      padding-bottom: 30px;
      margin-bottom: 50px;
      transition: 500ms;
      
    }

    .Menü_button {
      display: none;
    }

    .nav_bar {
      display: block;
      align-items: center;
      width: 90%;
      margin: auto;
      text-align: center;
      margin-top: 80px;
      margin-bottom: 80px;
      background-color: black;
      padding-top: 25px;
      padding-bottom: 25px;
      transition: 500ms;
    }

    .nav_bar:hover {
      padding-top: 50px;
      padding-bottom: 50px;
      border-radius: 80px;
      transition: 500ms;

    }

    .nav_bar a {
      text-decoration: none;
      font-size: 40px;
      font-weight: 600;
      padding-left: 15px;
      padding-right: 15px;
      padding-top: 15px;
      padding-bottom: 15px;
      background-color: whitesmoke;
      color: black;
      margin: auto;
      margin-left: 10px;
      margin-right: 10px;
      transition: linear 500ms;
      
    }

    .nav_bar a:hover {
      padding-left: 16px;
      padding-right: 16px;
      padding-top: 16px;
      padding-bottom: 16px;
      border: solid 5px rgb(251, 59, 0);
      transition: ease 200ms;
    }
  }