.openBtn {
    background: #f1f1f1;
    border: none;
    padding: 10px 15px;
    font-size: 20px;
    cursor: pointer;
  }
  
  .openBtn:hover {
    background: #bbb;
  }

  .overlay {
    height: 100%;
    width: 100%;
    display: none;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0, 0.9);
  }
  
  .overlay-content {
    position: relative;
    top: 46%;
    width: 80%;
    text-align: center;
    /* margin-top: 30px; */
    margin: auto;
    margin-right: -59px;
  }
  
  .overlay .closebtn {
    position: absolute;
    top: 20px;
    right: 45px;
    font-size: 60px;
    cursor: pointer;
    color: white;
  }
  
  .overlay .closebtn:hover {
    color: #ccc;
  }
  @media  (max-width:375px) {
   .overlay-content{
     width: 100%;
   }
  }
  
  .overlay input[type=text] {
    padding: 15px;
    font-size: 17px;
    border: none;
    float: left;
    width: 50%;
    background: white;
  }
  
  .overlay input[type=text]:hover {
    background: #f1f1f1;
  }
  
  .overlay button {
    float: left;
    width: 12%;
    padding: 15px;
    background: #ddd;
    font-size: 17px;
    border: none;
    cursor: pointer;
  }
  
  .overlay button:hover {
    background: #bbb;
  }