#fotosclientes {
   margin:auto;
   position: fixed;

} 

.camadafoto {
   float:left;
   width:100px;
   height:75px;
   margin: 2px;
   padding:2px;
   background-color:#f5f7f9;
   border-right: #a5a7aa solid 1px;
   border-bottom: #a5a7aa solid 1px;
}