pager.css

/**
 * @file
 * Pager styling.
 */
ul.pager {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  list-style: none;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin: 1em 0 2em;
  padding: 0;
  clear: both;
}

.no-flexbox .pager-first,
.no-flexbox .pager-previous,
.no-flexbox .pager-ellipsis,
.no-flexbox .pager-current,
.no-flexbox .pager-next,
.no-flexbox .pager-last,
.no-flexbox .pager-item {
  float: left;
}

.pager-item,
.pager-ellipsis {
  display: none;
}

@media (min-width: 34em) {
  .pager-item,
  .pager-ellipsis {
    display: block;
  }
}

.pager-first,
.pager-previous,
.pager-ellipsis,
.pager-current,
.pager-next,
.pager-last,
.pager-item {
  padding: 0.6em 1em;
  margin: 0;
}

.pager-ellipsis {
  padding-left: 0;
  padding-right: 0;
}

.pager-first a,
.pager-previous a,
.pager-next a,
.pager-last a {
  position: relative;
  display: block;
  text-indent: -9999em;
  overflow: hidden;
  width: 2.5em;
}

.pager-first a:before,
.pager-first a:after,
.pager-previous a:before,
.pager-next a:before,
.pager-last a:before,
.pager-last a:after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 0.5em;
  height: 0.5em;
  border: 0.125rem solid #ffffff;
  transform: translate(-50%, -50%) rotate(45deg);
}

.pager-first a:before,
.pager-first a:after,
.pager-previous a:before {
  border-top-width: 0;
  border-right-width: 0;
}

.pager-last a:before,
.pager-last a:after,
.pager-next a:before {
  border-bottom-width: 0;
  border-left-width: 0;
}

.pager-first a:before,
.pager-last a:before {
  margin-left: -0.1875rem;
}

.pager-last a:after,
.pager-first a:after {
  margin-left: 0.1875rem;
}

@media (min-width: 48em) {
  .pager-first a,
  .pager-previous a,
  .pager-next a,
  .pager-last a {
    text-indent: 0;
    overflow: visible;
    width: auto;
  }

  .pager-first a:before,
  .pager-first a:after,
  .pager-previous a:before,
  .pager-next a:before,
  .pager-last a:before,
  .pager-last a:after {
    display: none;
  }
}

.pager-first a,
.pager-previous a,
.pager-next a,
.pager-last a,
.pager-item a {
  margin: -0.6em -1em;
  padding: 0.6em 1em;
  text-decoration: none;
  transition: background-color 0.2s;
  will-change: background-color;
  white-space: nowrap;
}