blog.victor-hery.com/theme/static/css/blockquote.css

.article-content {
  & blockquote {
    --quotes-margin: 13px;
    background: Cornsilk;
    border-left: 5px solid goldenrod;
    border-radius: var(--border-radius);
    box-sizing: border-box;
    margin: 1rem auto 2rem;
    padding: 0.1rem 1.2rem;
    position: relative;
    width: 80%;
    &:before,
    &:after {
      color: dimgray;
      font-size: 4rem;
      line-height: 0;
      margin: 0;
      padding: 0;
      position: absolute;
    }
    &:before {
      content: open-quote;
      margin-right: var(--quotes-margin);
      right: 100%;
      top: 30px;
    }
    &:after {
      bottom: 0px;
      content: close-quote;
      left: 100%;
      margin-left: var(--quotes-margin);
      top: auto;
    }
    & p {
      margin: 20px 0;
    }
  }
}