.szalag {
  background:url(../images/design/szalag.jpg) bottom repeat-x;
  padding:0 0 70px 0;
  
    -webkit-animation: szalag 5s linear infinite; /* Chrome, Safari, Opera */ 
}

/* Chrome, Safari, Opera */
@-webkit-keyframes szalag {
    0%   { background-position:0px bottom;}
    100% { background-position:127px bottom;}
}