If this element is present in releases prior to MCS 3.5, MCS will cache internal style sheets in memory using the values in the contained cache element.
In MCS 3.5 and later the settings for this element no longer have any effect, though it is retained for backward compatibility.
<style-sheets>
<external-generation
base-directory="${MCS_HOME}/mcs/css"
base-url="[context_root]/MCSCSS"/>
<page-level-generation max-age="120000"/>
</style-sheets>