_card.scss

//
// Base styles
//

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0; // See https://github.com/twbs/bootstrap/pull/22740#issuecomment-305868106
  height: $card-height;
  word-wrap: break-word;
  background-color: $card-bg;
  background-clip: border-box;
  border: $card-border-width solid $card-border-color;
  @include border-radius($card-border-radius);

  > hr {
    margin-right: 0;
    margin-left: 0;
  }

  > .list-group:first-child {
    .list-group-item:first-child {
      @include border-top-radius($card-border-radius);
    }
  }

  > .list-group:last-child {
    .list-group-item:last-child {
      @include border-bottom-radius($card-border-radius);
    }
  }
}

.card-body {
  // Enable `flex-grow: 1` for decks and groups so that card blocks take up
  // as much space as possible, ensuring footers are aligned to the bottom.
  flex: 1 1 auto;
  // Workaround for the image size bug in IE
  // See: https://github.com/twbs/bootstrap/pull/28855
  min-height: 1px;
  padding: $card-spacer-x;
  color: $card-color;
}

.card-title {
  margin-bottom: $card-spacer-y;
}

.card-subtitle {
  margin-top: -$card-spacer-y / 2;
  margin-bottom: 0;
}

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

.card-link {
  @include hover() {
    text-decoration: none;
  }

  + .card-link {
    margin-left: $card-spacer-x;
  }
}

//
// Optional textual caps