The parent div is 20px wide. The child divs are 100% - 90% wide in 1% increments.
| Percentage | displayed width in Mozilla 1.6 and IE6 | displayed width in Opera 7 |
|---|---|---|
| 20 x 1.0 = 20 | 20px | 20px |
| 20 x .99 = 19.8 | 20px | 19px |
| 20 x .98 = 19.6 | 20px | 19px |
| 20 x .97 = 19.4 | 19px | 19px |
| 20 x .96 = 19.2 | 19px | 19px |
| 20 x .95 = 19.0 | 19px | 19px |
| 20 x .94 = 18.8 | 19px | 18px |
| 20 x .93 = 18.6 | 19px | 18px |
| 20 x .92 = 18.4 | 18px | 18px |
| 20 x .91 = 18.2 | 18px | 18px |
| 20 x .90 = 18.0 | 18px | 18px |