@media  (width >= 970px) {
    .overlay {
      height: 0%;
      width: 30vw;
      position: fixed;
      z-index: 1;
      top: 0;
      left: 0;
      background-color: rgb(0,0,0);
      background-color: rgba(0,0,0, 0.9);
      overflow-x: hidden;
      transition: 0.5s;
      text-transform: capitalize;
    }

    .overlay-content {
      position: relative;
      top: 25%;
      width: 100%;
      text-align: center;
      margin-top: 30px;
      font-size: 30px;
        
    font-family: 'Livvic', sans-serif; 
    font-weight:bold;
    font-weight:normal;
    text-transform:uppercase;    
    }

    .overlay a {
      padding: 8px;
      text-decoration: none;
      color: #818181;
      display: block;
      transition: 0.3s;
    }

    .submenuContainer{
      font-size: 20px;
      width:70%;
      margin:0 auto;
      border-bottom:1px solid white;

      display:none;
    }
    .overlay a.strzalkaRozwin {
      padding:0px;
      margin-top: -20px;
      text-decoration: none;
      font-size: 50px;
      color: #818181;
      display: block;
      transition: 0.3s;
      cursor:pointer;
    }

    .overlay span {
      padding: 8px;
      text-decoration: none;
      font-size: 36px;
      color: #818181;
      display: block;
      transition: 0.3s;
    }

    .overlay a:hover, .overlay a:focus {
      color: #f1f1f1;
    }

    .overlay .closebtn {
      position: absolute;
      top: 20px;
      right: 45px;
      font-size: 60px;
    }
  }
  @media (width <= 970px){
    .overlay {
      height: 0vh;
      width: 100%;
      min-width: 250px;
      position: fixed;
      z-index: 3;
      top: 0;
      right: 0;
      background-color: rgb(0,0,0);
      background-color: rgba(0,0,0, 0.9);
      overflow-x: hidden;
      transition: 0.3s;
      text-align: center;
      text-transform: capitalize;
    }
    .overlay {
      height: 0%;
      width: 100%;
      position: fixed;
      z-index: 1;
      top: 0;
      left: 0;
      background-color: rgb(0,0,0);
      background-color: rgba(0,0,0, 0.9);
      overflow-x: hidden;
      transition: 0.5s;
      text-transform: capitalize;
    }

    .overlay-content {
      position: relative;
      top: 25%;
      width: 100%;
      text-align: center;
      margin-top: 30px;
      font-size: 30px;
        
    font-family: 'Livvic', sans-serif; 
    font-weight:bold;
    font-weight:normal;
    text-transform:uppercase;    
    }

    .overlay a {
      padding: 8px;
      text-decoration: none;
      color: #818181;
      display: block;
      transition: 0.3s;
    }

    .submenuContainer{
      font-size: 20px;
      width:70%;
      margin:0 auto;
      border-bottom:1px solid white;

      display:none;
    }
    .overlay a.strzalkaRozwin {
      padding:0px;
      margin-top: -20px;
      text-decoration: none;
      font-size: 50px;
      color: #818181;
      display: block;
      transition: 0.3s;
      cursor:pointer;
    }

    .overlay span {
      padding: 8px;
      text-decoration: none;
      font-size: 36px;
      color: #818181;
      display: block;
      transition: 0.3s;
    }

    .overlay a:hover, .overlay a:focus {
      color: #f1f1f1;
    }

    .overlay .closebtn {
      position: absolute;
      top: 20px;
      right: 45px;
      font-size: 60px;
    }
  }


    @media (height <= 450px) {
      .overlay a {font-size: 20px}
      .overlay a.submenu-rozwijane {font-size: 15px}
      .overlay .closebtn {
      font-size: 40px;
      top: 15px;
      right: 35px;
      }
    }