// pages/test/test.js
Page({
 containerTap: function (res) {
  var that = this
  var x = res.touches[0].pageX;
  var y = res.touches[0].pageY + 85;
  this.setData({
   rippleStyle: ''
  });
  setTimeout(function () {
   that.setData({
    rippleStyle: 'top:' + y + 'px;left:' + x + 'px;-webkit-animation: ripple 0.4s linear;animation:ripple 0.4s linear;'
   });
  }, 200)
 },
})

<view class="ripple" style="{{rippleStyle}}"></view>
<view class="container" bindtouchstart="containerTap"></view>

page{height:100%}
.container{
  width:100%;
  height:100%;
  overflow: hidden
}
.ripple {
  background-color:aquamarine;
  border-radius: 100%;
  height:10px;
  width:10px;
  margin-top: -90px;
  position: absolute;
  
  overflow: hidden
}
@-webkit-keyframes ripple {
  100% {
  webkit-transform: scale(12);
  transform: scale(12);
  background-color: transparent;
  }
}