.modal-overlay {
      display: none;
      position: fixed;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0, 0, 0, 0.3);
      justify-content: center;
      align-items: center;
      z-index: 1000;
    }

    .modal-content {
      background: white;
      padding: 20px;
      border-radius: 8px;
      width: 300px;
      text-align: center;
      margin-top: 3%;
      margin-right: 3%;
      float: right;
     }

    .modal-content img{
      display: block;
      height: 40px;
    }

    .close-btn {
      margin-top: 15px;
      cursor: pointer;
      padding: 14px !important;
      border: 1px solid #d0d0d0;
      font-size: 14px;
      line-height: 12px;
      display: inline-block;
      border-radius: 4px;
      margin-right: 5px;
      background-color: #fff;
    }

    @media screen and (max-width:480px) {
      .modal-content {
      margin-top:calc((100% - 340PX) / 2);
      margin-right:calc((100% - 340PX) / 2) ;
     }

    }