.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  background-color: rgba(0, 0, 0, 0.8);
  background: -webkit-linear-gradient(top left, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7)); }
  .lightbox img {
    max-height: 90%;
    max-width: 90%;
    display: block;
    margin: auto;
    border: solid 0.5em white;
    margin-top: 3em; }
  .lightbox .close {
    color: #fff;
    border: none;
    padding: 0;
    margin: 0;
    background: none;
    box-shadow: none;
    font-size: 3em;
    width: 2em;
    line-height: 1;
    text-align: center;
    position: absolute;
    top: 0;
    right: 0;
    text-indent: 0; }