1. css property: border-bottom-left-radius: percentages

2. css property: border-bottom-right-radius: percentages

3. css property: border-radius: percentages

4. css property: border-top-left-radius: percentages

5. css property: border-top-right-radius: percentages

6. css property: opacity: support for percentage opacity values

7. css property: shape-image-threshold: support for percentage opacity values

8. css property: text-size-adjust: `<percentage>`

9. css property: word-spacing: `<percentage>` values