Determines the maximum possible content height of the selected element. Percentage value is calculated based on the height of the containing element.
max-heigh: 500px;
IE7, FF1+, SA1.3+, OP9.2+
| em | Relative length value. A em unit is equal to the font-size value of the element used. |
| none | Does not apply the properties style. |
| Percentage value | The regular format of a percentage value. |
| px | Pixel, a pixel unit represents a single dot on the screen. |