antd-mobile/2x/cjs/components/form/form-item.css

<img src="https://gw.alipayobjects.com/mdn/rms_ee68a8/afts/img/A*hjjDS5Yy-ooAAAAAAAAAAAAAARQnAQ" alt="logo" width="100%" />

.adm-form-item + .adm-form-item {
  border-top: none;
}

.adm-form-item-label {
  display: block;
  height: 100%;
  line-height: 1.5;
  box-sizing: border-box;
  position: relative;
  color: #666666;
}

.adm-form-item-label-required {
  position: absolute;
  left: -0.6em;
  top: 0;
  font-family: SimSun, sans-serif;
  color: var(--adm-color-danger);
  user-select: none;
}

.adm-form-item-label-help {
  margin-left: 8px;
}

.adm-form-item-footer {
  color: var(--adm-color-danger);
  margin-top: 8px;
}

.adm-form-item.adm-form-item-hidden {
  display: none;
}

.adm-form-item.adm-form-item-horizontal.adm-list-item {
  --align-items: stretch;
  --prefix-width: 6em;
}

.adm-form-item.adm-form-item-horizontal .adm-list-item-content-prefix {
  padding-top: 24px;
  padding-bottom: 24px;
}

.adm-form-item.adm-form-item-horizontal .adm-list-item-content-extra {
  align-self: center;
}

.adm-form-item.adm-form-item-vertical .adm-form-item-label {
  font-size: 30px;
  margin-bottom: 8px;
}