garden.canalswans.net/src/layouts/markdown.scss

.markdownWrapper {
  header {
    //h1 {
    //  text-align: center;
    //}

    p {
      color: gray;
    //  text-align: center;
    //  margin-bottom: 45px;
    }
  }

  .gatsby-resp-image-wrapper {
    margin-bottom: 30px;
    margin-top: 20px;
  }

  .footnotes {
    margin-top: 40px;
  }
}