antd-mobile/2x/es/components/badge/badge.css

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

.adm-badge-wrap {
  display: inline-block;
  position: relative;
}

.adm-badge {
  display: inline-flex;
  vertical-align: middle;
  box-sizing: content-box;
  border-radius: 200px;
  background-color: var(--color);
  --right: 0;
  --top: 0;
  --color: var(--adm-badge-color, #ff411c);
}

.adm-badge-content {
  color: #fff;
  box-sizing: border-box;
  min-width: 16px;
  padding: 2px 8px;
  font-size: 18px;
  line-height: 24px;
  white-space: nowrap;
  font-weight: normal;
  text-align: center;
}

.adm-badge-fixed {
  position: absolute;
  right: var(--right);
  top: var(--top);
  transform: translate(50%, -50%);
}

.adm-badge-dot {
  min-width: 20px;
  width: 20px;
  height: 20px;
  border-radius: 10px;
}

.adm-badge-bordered {
  border: solid 2px var(--adm-color-white);
}