Determines the minimum content width of the selected element. The elements box maybe taller, but not shorter. Percentage value is calculated based on the width of the containing element.
min-width: 100px;
IE7, FF1+, SA1.3+, OP9.2+
| em | Relative length value. A em unit is equal to the font-size value of the element used. |
| normal | Sets the default value. |
| Percentage value | The regular format of a percentage value. |
| px | Pixel, a pixel unit represents a single dot on the screen. |