Vulcan/packages/telescope-theme-base/lib/client/scss/global/_markdown.scss

.markdown{
  img{
    max-width: 100%;
  }
  ul, ol, p, pre, blockquote, h1, h2, h3, h4, h5{
    margin-bottom: 1em;
    line-height: 1.7;
    &:last-child{
      margin-bottom:0;
    }
  }
  strong{
    font-weight:bold;
  }
  em{
    font-style:italic;
  }
  ul, ol{
    padding-left:18px;
  }
  ul{
    list-style-type:disc;
  }
  ol{
    list-style-type:decimal;
  }
  a{
    &:link, &:visited, &:active{
      color:$blue;
    }
    &:hover{
      color:$red;
    }
  }
  h1, h2, h3, h4, h5{
    font-weight:bold;
  }
  h1{
    font-size:36px;
  }
  h2{
    font-size:24px;
  }
  h3{
    font-size:18px;
  }
  h4{
    font-size:16px;
  }
  h5{
    font-size:14px;
  }
  code{
    font-family: monospace;
    margin: 0 2px;
    padding: 0px 5px;
    border: 1px solid #ddd;
    background-color: #f8f8f8;
    border-radius: 3px;
  }
  pre{
    padding: 20px;
    border: 1px solid #ddd;
    background-color: #f8f8f8;
    overflow-x: scroll;
    code{
      border: none;
      background: none;
    } 
  }
  blockquote{
    border-left: 3px solid #eee;
    padding-left: 20px;
  }
}