ios 橡皮筋效果 -webkit-overflow-scrolling: touch;
.body{
position: absolute;
left: 0;
right: 0;
overflow-y: auto;
-webkit-overflow-scrolling: touch;
}
.body{
position: absolute;
left: 0;
right: 0;
overflow-y: auto;
-webkit-overflow-scrolling: touch;
}