magento每个父类别单独的样式表

<reference name=\"head\">
    <action method=\"addCss\">
        <stylesheet>yourtheme/css/red.css</stylesheet>
        <params>media=\"screen\"</params>
    </action>
</reference>

<?xml version=\"1.0\" encoding=\"UTF-8\"?>

<!DOCTYPE deliverance [
<!ENTITY somecss SYSTEM \"somecss.css\">
<!ENTITY othercss SYSTEM \"othercss.css\">
<!ENTITY alexthomas SYSTEM \"alexthomas.css\">
]>

<css>
  &somecss;
  &othercss;  
  &alexthomas;
</css>