.md-reader {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 60px;
  font-size: 16px;
  line-height: 1.8;
  color: #24292e;
  word-break: break-word;
}
.md-reader h1 { font-size: 24px; margin: 28px 0 14px; }
.md-reader h2 { font-size: 21px; margin: 24px 0 12px; }
.md-reader h3 { font-size: 18px; margin: 20px 0 10px; }
.md-reader p { margin: 14px 0; }
.md-reader img { max-width: 100%; height: auto; display: block; margin: 14px auto; border-radius: 4px; }
.md-reader blockquote { margin: 16px 0; padding: 10px 14px; background: #f7f7f7; border-left: 4px solid #ccc; color: #666; }
.md-reader pre { background: #2d2d2d; color: #f8f8f2; padding: 14px; border-radius: 6px; overflow: auto; }
.md-reader code { background: #f3f3f3; padding: 2px 6px; border-radius: 3px; font-family: Consolas, monospace; font-size: 14px; }
.md-reader pre code { background: none; padding: 0; }
.md-reader a { color: #576b95; }
.md-reader li { margin: 6px 0; }