html, body {
    overflow: hidden;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

#renderCanvas {
    width: 100%;
    height: 100%;
    touch-action: none;
}



/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.7); /* Black w/ opacity */
}

/* Modal Content/Box */
.modal-content {
  background-color: #fefefe;
  margin: auto auto; /* 15% from the top and centered */
  padding: 20px;
  margin-top:5vh;
  border: 1px solid #888;
  width: 50%; /* Could be more or less, depending on screen size */
}

.modal-content img {
  width: 100%;
}

/* The Close Button */
.close {
  color: #aaa;
  float: right;
  margin-top: -7vh;
  margin-right: -3vw;
  font-size: 5vh;
  font-weight: bold;
}

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