body {
  background: none;
  background-image: url(https://az659834.vo.msecnd.net/eventsairaueprod/production-fcm-public/a177c33e397e4f70b0f1e4be95db0b0e);
  background-repeat:no-repeat;
  background-size: 100%; 
  background-position: center;    
  background-attachment: fixed;
}