gather/pages/claimer/claimer.wxss

.claimer-mian{
  height: auto;
  padding-bottom: 100rpx;

}
.claimer-mian-btn{
  position: fixed;
  width: 100%;
  background-color: green;
  flex-direction: row nowrap;
  font-size: 30rpx;
  height: 70rpx;
  line-height: 70rpx;
  z-index: 999;
  text-align: center;
  bottom: 20rpx;
  color: white;
}