.dropdown-menu {
  list-style: none;
}

.dropdown-menu li {
  list-style: none;
  text-align: left;
}

.checkbox-dropdown {
  -moz-user-select: none;
  background: #fff none repeat scroll 0 0;
  border: 1px solid silver;
  border-radius: 2px;
  cursor: pointer;
  margin: 0 auto;
  padding: 10px;
  position: relative;
}

.checkbox-dropdown::after {
  -moz-border-bottom-colors: none;
  -moz-border-left-colors: none;
  -moz-border-right-colors: none;
  -moz-border-top-colors: none;
  border-color: #000 transparent transparent;
  border-image: none;
  border-style: solid;
  border-width: 6px;
  content: "";
  height: 0;
  margin-top: -3px;
  position: absolute;
  right: 10px;
  top: 50%;
  width: 0;
}

.checkbox-dropdown.is-active::after {
  border-bottom-color: #000;
  border-top-color: #fff;
  margin-top: -9px;
}

.checkbox-dropdown-list {
  -moz-border-bottom-colors: inherit;
  -moz-border-left-colors: inherit;
  -moz-border-right-colors: inherit;
  -moz-border-top-colors: inherit;
  background-color: #fff;
  border-bottom: inherit;
  border-image: inherit;
  border-left: inherit;
  border-right: inherit;
  border-top: medium none;
  left: -1px;
  list-style: outside none none;
  margin: 0;
  opacity: 0;
  padding: 0;
  pointer-events: none;
  position: absolute;
  right: -1px;
  top: 100%;
  transition: opacity 0.4s ease-in-out 0s;
  z-index: 100;
}

.is-active .checkbox-dropdown-list {
  opacity: 1;
  pointer-events: auto;
}

.checkbox-dropdown-list li {
  border-bottom: 1px solid silver;
  display: block;
  padding: 10px;
  position: relative;
  transition: all 0.2s ease-out 0s;
}

.checkbox-dropdown-list li:hover {
  background-color: #efefef;
  color: white;
}

.checkbox-dropdown-list li label {
  display: inline-block;
  font-weight: normal;
  width: calc(100% - 40px);
}

.checkbox-dropdown-list li input[type="checkbox"] {
  display: inline-block;
  width: 30px;
}

ul.columns {
  columns: 2;
  -webkit-columns: 2;
  -moz-columns: 2;
}

ul.columns li {
  list-style: none;
}

ul.columns-3 {
  columns: 3;
  -webkit-columns: 3;
  -moz-columns: 3;
}

ul.columns-3 li {
  list-style: none;
}

.nav.nav-pills.nav-stacked {
  margin: 0;
}

.nav.nav-pills.nav-stacked > li > a {
  background-color: #eee;
  border: 1px solid #eee;
  color: #337ab7;
}

.nav.nav-pills.nav-stacked > li > a:hover {
  border: 1px solid #ccc;
  color: #337ab7;
}

.btn:visited {
  color: white;
}

.btn.btn-default:visited {
  color: #333;
}

.dropdown-menu-container {
  position: relative;
}

.dropdown-menu-container .dropdown-menu {
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  display: none;
  float: left;
  min-width: 160px;
  padding: 5px 0;
  margin: 2px 0 0;
  font-size: 14px;
  text-align: left;
  list-style: none;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ccc;
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.175);
  max-height: 200px;
  overflow-y: scroll;
  overflow-x: hidden;
  width: 100%;
}

.dropdown-menu-container .dropdown-menu label {
  width: 100%;
  margin: 0;
  padding: 5px 10px;
  font-weight: 500;
  font-size: 13px;
}

.dropdown-menu-container .dropdown-menu.images {
  max-height: 300px;
  width: auto;
}

.dropdown-menu-container.open .dropdown-menu {
  display: block;
}

th[data-sort]:after {
  content: '\2195';
  position: relative;
  margin-left: 5px;
}

th[data-sort].sorting-asc:after {
  content: '\2191';
}

th[data-sort].sorting-desc:after {
  content: '\2193';
}

.image-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

@media (min-width: 480px) {
  .image-list {
    margin: 0 -5px;
    overflow: hidden;
  }
}

.image-list li {
  text-align: center;
  list-style-type: none;
  display: inline-block;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 4px;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: center;
}

@media (min-width: 480px) {
  .image-list li {
    width: calc(50% - 10px);
    margin: 0 5px 10px 5px;
  }
  .image-list li:nth-child(2n + 1) {
    clear: left;
  }
}

@media (min-width: 640px) {
  .image-list li {
    width: calc(33.33% - 10px);
    margin: 0 5px 10px 5px;
  }
  .image-list li:nth-child(2n + 1) {
    clear: none;
  }
  .image-list li:nth-child(3n + 1) {
    clear: left;
  }
}

@media (min-width: 640px) {
  .image-list li {
    width: calc(25% - 10px);
    margin: 0 5px 10px 5px;
  }
  .image-list li:nth-child(2n + 1) {
    clear: none;
  }
  .image-list li:nth-child(3n + 1) {
    clear: none;
  }
  .image-list li:nth-child(4n + 1) {
    clear: left;
  }
}

.image-list .image-title {
  display: block;
  font-size: 12px;
  padding: 4px 0 0 0;
  color: #aaa;
}

.image-list button {
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  width: 100%;
}

.image-list button img {
  opacity: 0.65;
}

.image-list button:hover {
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
}

.image-list button:hover img {
  opacity: 1;
}

.image-list button:focus {
  border: 0;
  padding: 0;
  margin: 0;
  outline: 0;
  background: transparent;
}

.image-list button:focus img {
  opacity: 1;
}