antd-mobile/cjs/components/pull-to-refresh/pull-to-refresh.css

<div align="center">

.adm-pull-to-refresh-head {
  overflow: hidden;
  position: relative;
}
.adm-pull-to-refresh-head-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  color: var(--adm-color-weak);
  display: flex;
  justify-content: center;
  align-items: center;
}