body > main {
  margin-top: 5em; }
  body > main > div.gallery {
    width: 90%;
    margin-left: 5%;
    margin-right: 5%; }
    body > main > div.gallery > a {
      margin: 0;
      padding: 0;
      text-decoration: none;
      line-height: 0; }
      body > main > div.gallery > a > img.img-gal {
        display: none;
        width: 100%;
        margin: 1px; }

/* DESKTOP SIZE */
@media all and (min-width: 768px) {
  body > main > div.gallery {
    margin: 0;
    width: 100%;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-flex-wrap: wrap;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center; }
    body > main > div.gallery > a > img.img-gal {
      display: none;
      width: auto;
      max-height: 300px;
      -webkit-transition: box-shadow 250ms linear;
      -moz-transition: box-shadow 250ms linear;
      -webkit-transition: -webkit-box-shadow 250ms linear;
      transition: -webkit-box-shadow 250ms linear;
      -o-transition: box-shadow 250ms linear;
      transition: box-shadow 250ms linear;
      transition: box-shadow 250ms linear, -webkit-box-shadow 250ms linear; }
      body > main > div.gallery > a > img.img-gal:hover {
        -webkit-box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.6);
        box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.6); } }