VLAN Access-List (VACL)

Hi VACL I really don’t get it .

In normal access list we either put in last line
Deny or permit at the end it’s deny all .

SW1#show access-lists 
Standard IP access list 1
    10 permit 192.168.1.0, wildcard bits 0.0.0.255

Please forward me VACL chapter.

Thanks