.image-modal {
  display: none;
  position: fixed;
  z-index: 1000;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.9);
}

.image-modal-content {
  margin: auto;
  display: block;
  width: 50vw;
  max-width: 700px;
}

.close-image-modal {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.5s;
}

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