This test I was a little more happy about. I only missed 6, but what irked me was that the B(bold) tag was not admitted, while the I and U tag were.
As a web developer, i would be pretty ashamed of my self if I didnt score well on this. As it was, the one that I missed were pretty much deprecated so it may not be the most accurate test. Still, getting a decent score make me feel good.