weseek__growi/packages/app/src/styles/_sidebar-wiki.scss

%grw-custom-sidebar-content {
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin-top: 1em;
    margin-bottom: 0.4em;

    &:first-child {
      margin-top: 0;
    }
  }

  h1 {
    padding-top: 0.2em;
    font-size: 1.4em;
    line-height: 1em;
  }
  h2 {
    padding-top: 0.2em;
    font-size: 1.2em;
    line-height: 1em;
  }
  h3 {
    font-size: 1.1em;
  }
  h4 {
    font-size: 1.05em;
  }
  h5 {
    font-size: 1.03em;
  }

  ul,
  ol {
    padding-left: 20px;
    margin: 10px 0;
  }

  .page-list .page-list-ul {
    padding-left: 0;
    margin: 0;
  }
}

.grw-custom-sidebar-content.wiki {
  @extend %grw-custom-sidebar-content;
}