/* The Modal (background) */
.modal {
    text-align: center;
    display: none; /* Hidden by default */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5000; /* Sit on top */
<!--  padding-top: 100px; /* Location of the box */-->
<!--  background-color: rgb(0,0,0); /* Fallback color */-->
<!--  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */-->
}

/* Modal Content */
.modal-content {
  background-color: #fefefe;
  margin: auto;
  padding: 0px;
  border: 1px solid #888;
  width: 80%;
}

/* The Close Button */
.close {
  color: #aaaaaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
  text-align: right;
}

.close:hover,
.close:focus {
  color: #000;
  text-decoration: none;
  cursor: pointer;
}