material-design-lite/app/styles/components/_components/_subsection-title.scss

/**
*
* subsection__title
*
**/

.subsection-title {
  color: $colorGrayDark;
  margin-top: $lineHeight * 2;
}

.subsection-number {
  @include type--base;
  padding-top: 0;
  display: block;
}