Ciao a tutti
controllando con Page Speed il mio sito ho rilevato dei problemi con i css.
Nello specifico il software mi mette in alert con questi messaggi


Use efficient CSS selectors:
codice:
    * div.modx_menu .modx span    Tag key with 2 descendant selectors and Class overly qualified with tag
    * div.acquisti-h .modx span    Tag key with 2 descendant selectors and Class overly qualified with tag
    * .promo-cat h3 :link    Universal key with 2 descendant selectors
    * .promo-cat h3 :visited    Universal key with 2 descendant selectors
    * .promo-cat h3 :hover    Universal key with 2 descendant selectors
    * div.slide-h .modx span    Tag key with 2 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon p    Tag key with 2 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul    Tag key with 2 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li em    Tag key with 4 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li b    Tag key with 4 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li    Tag key with 3 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li:hover    Tag key with 3 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li span img    Tag key with 5 descendant selectors and Class overly qualified with tag
    * #gallery li.galleryon ul li.page em    Tag key with 4 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.hz em    Tag key with 4 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.page em img    Tag key with 5 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.page b    Tag key with 4 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.page b a    Tag key with 5 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.page b a:visited    Tag key with 5 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
    * #gallery li.galleryon ul li.page b a:hover    Tag key with 5 descendant selectors and Class overly qualified with tag and Class overly qualified with tag
Potete gentilmente spiegarmi cosa sta a significare ?
Grazie