body { 
  -webkit-overflow-scrolling: touch; 
  -webkit-transform: translate3d(0, 0, 0); 
  -webkit-tap-highlight-color: rgba(0,0,0,0);
   padding-top: constant(safe-area-inset-top); /* iOS 11.0 */
 padding-top: env(safe-area-inset-top); /* iOS 11.2 */
}