Default font-size for h1 is like h2 if it's inside a section. This is by design, but it is rather not useful and confusing.
Body (with the green border) should fill the hole Viewport (min-height:100%) and a placeholder for the scrollbar should be there. To test it you can click on this Text
Some Text in a Paragraph Some Text in a Paragraph Some Text in a Paragraph
Some Text in a Paragraph Some Text in a Paragraph Some Text in a Paragraph
Some Text in a Paragraph Some Text in a Paragraph Some Text in a Paragraph
Some Text in a Paragraph Some Text in a Paragraph Some Text in a Paragraph
| Head | Batman | Robin |
|---|---|---|
| Skill | Smarts | Dex, acrobat |
| Skill | Smarts | Dex, acrobat |
| Total | 2 | 3 |
| Table-Cell-Test | |