html, body { 
  height: 100%; 
  margin: 0 0 1px; 
  padding: 0px; 
} 
.wrapper { 
    min-height: 100%; 
    height: auto; 
} 

.header { height: 145px; background-image: url(../images/bgtopp.png); background-position: center top; background-repeat: no-repeat; } 
.nav { height: 20px; padding-bottom: 40px; background-image: url(../images/bgmenu.png); background-position: center top; background-repeat: no-repeat;} 
.content{  height: auto; min-height: 450px; padding-top: 30px; padding-bottom: 20px; background-image: url(../images/bgmain.jpg); background-position: center top; background-repeat: repeat-y;} 
.footer{ height: 40px; padding-top: 8px; background-image: url(../images/footer.png); background-position: center top; background-repeat: no-repeat;}