.cu-form-group.focus {
  background-color: rgba(0, 0, 0, 0.05);
}
.cu-form-group .materialFocus {
  position: absolute;
  top: 5rpx;
  left: 20rpx;
  font-size: 16rpx;
  -webkit-transition-property: top,font-size;
  transition-property: top,font-size;
  -webkit-transition-duration: 0.2s;
          transition-duration: 0.2s;
  -webkit-transition-timing-function: ease;
          transition-timing-function: ease;
}
.cu-form-group .materialBlur {
  left: 20rpx;
  top: 50%;
  -webkit-transform: translateY(-50%);
          transform: translateY(-50%);
  position: absolute;
  -webkit-transition-property: top,font-size;
  transition-property: top,font-size;
  -webkit-transition-duration: 0.2s;
          transition-duration: 0.2s;
  -webkit-transition-timing-function: ease;
          transition-timing-function: ease;
}