@gerv if you don’t care of the w3c-compliance, you could just fix this one line: the horizontal scroll will be very limited; if if you want to prevent the horizontal scroll completely, you just need to add this CSS rule in the header:
```css
    body > * {
      /* some lines are too long, mostly because of email addresses */
      max-width: 100%;
      overflow: hidden;
    }
```