Safari 设置平滑滚动

body {
  -webkit-overflow-scrolling:touch;
}

如果页面有position: fixed的元素，那么页面布局会错乱

则需要设置transform

.element {
  position: fixed;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

相关问题

https://stackoverflow.com/questions/22167382/position-fixed-not-working-on-windows-safari