.bca-main {
  font-size: $label_font_size_small;
  position: relative;
  flex-basis: 100%;
  overflow: auto;
  background: $color_background_primary;
  line-height:1.4;
  // border-top: 1px solid #ccc;

  // ❗ .contents-body と同じ要素 ❗
  &__body {
    padding: 0;
    //a:link {
    //  color:$color_primary;
    //}
    //a:hover {
    //  color:$color_secondary;
    //}
  }
  &__contents {
    padding: 20px;
    margin: 20px;
    background-color: $color_background_secondary;
    border: 1px solid $color_main_contents_border_color;
  }
  &__header {
    padding: 10px 20px;
    //background-color:#F4F5F1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: $color_background_secondary;
    border-bottom: 1px solid $color_main_contents_border_color;
    &-title {
      flex: 0 0 auto;
      margin: 0 1em 0 0;
      font-size: 2rem;
      font-weight: 900;
      color: $color_main_title;
      line-height: 40px;
    }

    &-actions {
      display: inline-block;
      vertical-align: top;
      flex: 1 1 auto;
    }

    &-menu {
      flex: 0 1 auto;
    }
  }
  &__section {
    margin-bottom: 30px;
  }
  &__heading {
    display: inline-block;
    margin: 0 1em 1em 0;
    padding: 0.25em 0 0.25em;
    font-weight: normal;
    &[data-bca-heading-size=lg] {
      font-size: $label_font_size_large;
    }
    &[data-bca-heading-size=md] {
      font-size: $label_font_size_medium;
    }
  }
  &__text {
    margin: 0 0 1em;
    line-height: 1.5;
  }
  pre {
    background-color: #efefef;
    padding:5px 10px;
  }
  code {
    background-color: #efefef;
    padding:2px 5px;
  }
  &__number-list {
    li {
      margin:20px 0;
    }
  }
}
