html .df-back-issues ul {
  list-style: none;
  padding: 0;
  margin: 0; }
html .df-back-issues li {
  margin-bottom: 1.33em; }
  html .df-back-issues li img {
    width: 100%; }
  html .df-back-issues li h3,
  html .df-back-issues li h4 {
    padding: .3em .2em .1em; }
  html .df-back-issues li .title {
    padding: 0 .3em;
    margin-bottom: .5em; }
html .df-back-issues > ul {
  display: flex !important;
  flex-wrap: wrap; }
  html .df-back-issues > ul > li {
    width: calc(25% - 1em); }
    html .df-back-issues > ul > li:not(:nth-child(4n+4)) {
      margin-right: 1.33em; }
html .df-back-issues .current > li {
  text-align: center;
  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.5); }
html .df-back-issues .active {
  width: 100%; }
  html .df-back-issues .active > ul {
    display: flex !important;
    flex-wrap: wrap; }
    html .df-back-issues .active > ul > li {
      width: calc(25% - 1em); }
      html .df-back-issues .active > ul > li:not(.active):not(:nth-child(4n+4)) {
        margin-right: 1.33em; }
      html .df-back-issues .active > ul > li.active {
        width: 100%; }
html .df-back-issues .no-file {
  position: relative; }
  html .df-back-issues .no-file::after {
    content: ' ';
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 2em;
    left: 0;
    background-image: url(../img/no_file.png);
    background-repeat: no-repeat;
    background-position: center center; }

@media (max-width: 767px) {
  html .df-back-issues > ul > li {
    width: calc(50% - .5em); }
    html .df-back-issues > ul > li:not(:nth-child(4n+4)) {
      margin-right: 0; }
    html .df-back-issues > ul > li:not(:nth-child(2n+2)) {
      margin-right: 1em; }
  html .df-back-issues .active > ul > li {
    width: calc(50% - .5em); }
    html .df-back-issues .active > ul > li:not(.active):not(:nth-child(4n+4)) {
      margin-right: 0; }
    html .df-back-issues .active > ul > li:not(.active):not(:nth-child(2n+2)) {
      margin-right: 1em; } }