time1/documentation/styles/bootstrap-card.css

.card {
  position: relative;
  display: block;
  margin-bottom: 20px;
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.card-block {
  padding: 15px;
}
.card-block:before, .card-block:after {
  content: " ";
  display: table;
}
.card-block:after {
  clear: both;
}

.card-title {
  margin: 5px;
  margin-bottom: 2px;
  text-align: center;
}

.card-subtitle {
  margin-top: -10px;
  margin-bottom: 0;
}

.card-text:last-child {
  margin-bottom: 0;
  margin-top: 10px;
}

.card-link:hover {
  text-decoration: none;
}
.card-link + .card-link {
  margin-left: 15px;
}

.card > .list-group:first-child .list-group-item:first-child {
  border-top-right-radius: 4px;
  border-top-left-radius: 4px;
}
.card > .list-group:last-child .list-group-item:last-child {
  border-bottom-right-radius: 4px;
  border-bottom-left-radius: 4px;
}

.card-header {
  padding: 10px 15px;
  background-color: #f5f5f5;
  border-bottom: 1px solid #ddd;
}
.card-header:before, .card-header:after {
  content: " ";
  display: table;
}
.card-header:after {
  clear: both;
}
.card-header:first-child {
  border-radius: 4px 4px 0 0;
}

.card-footer {
  padding: 10px 15px;
  background-color: #f5f5f5;
  border-top: 1px solid #ddd;
}
.card-footer:before, .card-footer:after {
  content: " ";
  display: table;
}
.card-footer:after {
  clear: both;
}
.card-footer:last-child {
  border-radius: 0 0 4px 4px;
}

.card-header-tabs {
  margin-right: -5px;
  margin-bottom: -10px;
  margin-left: -5px;
  border-bottom: 0;
}

.card-header-pills {
  margin-right: -5px;
  margin-left: -5px;
}

.card-primary {
  background-color: #337ab7;
  border-color: #337ab7;
}
.card-primary .card-header,
.card-primary .card-footer {
  background-color: transparent;
}

.card-success {
  background-color: #5cb85c;
  border-color: #5cb85c;
}
.card-success .card-header,
.card-success .card-footer {
  background-color: transparent;
}

.card-info {
  background-color: #5bc0de;
  border-color: #5bc0de;
}
.card-info .card-header,
.card-info .card-footer {
  background-color: transparent;
}

.card-warning {
  background-color: #f0ad4e;
  border-color: #f0ad4e;
}
.card-warning .card-header,
.card-warning .card-footer {
  background-color: transparent;
}

.card-danger {
  background-color: #d9534f;
  border-color: #d9534f;
}
.card-danger .card-header,
.card-danger .card-footer {
  background-color: transparent;
}

.card-outline-primary {
  background-color: transparent;
  border-color: #337ab7;
}

.card-outline-secondary {
  background-color: transparent;
  border-color: #ccc;
}

.card-outline-info {
  background-color: transparent;
  border-color: #5bc0de;
}

.card-outline-success {
  background-color: transparent;
  border-color: #5cb85c;
}

.card-outline-warning {
  background-color: transparent;
  border-color: #f0ad4e;
}

.card-outline-danger {
  background-color: transparent;
  border-color: #d9534f;
}

.card-inverse .card-header,
.card-inverse .card-footer {
  border-color: rgba(255, 255, 255, 0.2);
}
.card-inverse .card-header,
.card-inverse .card-footer,
.card-inverse .card-title,
.card-inverse .card-blockquote {
  color: #fff;
}
.card-inverse .card-link,
.card-inverse .card-text,
.card-inverse .card-subtitle,
.card-inverse .card-blockquote .blockquote-footer {
  color: rgba(255, 255, 255, 0.65);
}
.card-inverse .card-link:hover, .card-inverse .card-link:focus {
  color: #fff;
}

.card-blockquote {
  padding: 0;
  margin-bottom: 0;
  border-left: 0;
}

.card-img {
  border-radius: .25em;
}

.card-img-overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 15px;
}

.card-img-top {
  border-top-right-radius: 4px;
  border-top-left-radius: 4px;
}

.card-img-bottom {
  border-bottom-right-radius: 4px;
  border-bottom-left-radius: 4px;
}