body, .geral{
  filter:none; background: url(http://ts2.mm.bing.net/th?id=HN.607989334653470928&w=189&h=145&c=7&rs=1&qlt=90&o=4&pid=1.7) no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover;
}