bootstrap/lib/thumbnails.less

// THUMBNAILS
// ----------

.thumbnails {
  margin-left: -20px;
  margin-bottom: 0;
  list-style: none;
  .clearfix();
}
.thumbnails > li {
  float: left;
  margin: 0 0 20px 20px;
}
.thumbnail {
  display: block;
  padding: 4px;
  line-height: 1;
  border: 1px solid #ddd;
  .border-radius(4px);
  .box-shadow(0 1px 1px rgba(0,0,0,.075));
}
// Add a hover state for linked versions only
a.thumbnail:hover {
  border-color: @linkColor;
  .box-shadow(0 1px 4px rgba(0,105,214,.25));
}
// Images and captions
.thumbnail > img {
  display: block;
  max-width: 100%;
}
.thumbnail .caption {
  padding: 9px;
}

// carousel
.carousel {
  position: relative;

  .item { display: none; }
  .active { display: block; }

  .nav {
    height: 50px;
    position: absolute;
    top: 50%;
    margin: -25px 0 0;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 42px;
    left: 5px;
    font-weight: 100;
    padding: 0 15px;
    &.right { right: 5px; left: auto; }
    &:hover { text-decoration: none; background: rgba(0, 0, 0, 0.8); }
  }
}