antd-mobile/2x/cjs/components/passcode-input/passcode-input.css

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

.adm-passcode-input {
  position: relative;
  display: inline-block;
  --cell-size: 80px;
  --cell-gap: 12px;
  --dot-size: 20px;
  --border-color: #e5e5e5;
  --border-radius: 16px;
}

.adm-passcode-input-cell-container {
  display: inline-flex;
  vertical-align: top;
}

.adm-passcode-input-cell {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  font-size: 36px;
  width: var(--cell-size);
  height: var(--cell-size);
  background: var(--adm-color-white);
}

.adm-passcode-input:not(.seperated) {
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 2px solid var(--border-color);
}

.adm-passcode-input:not(.seperated) .adm-passcode-input-cell:not(:last-child) {
  border-right: 2px solid var(--border-color);
}

.adm-passcode-input:not(.seperated).focused {
  border-color: var(--adm-color-primary);
  box-shadow: 0 0 4px 0 var(--adm-color-primary);
  outline: none;
}

.adm-passcode-input:not(.seperated).error {
  border-color: var(--adm-color-danger);
  box-shadow: 0 0 4px 0 var(--adm-color-danger);
  animation: 100ms ease-in-out 0s 3 normal none running adm-shake-horizontal;
}

.adm-passcode-input.seperated .adm-passcode-input-cell {
  border-radius: var(--border-radius);
  border: 2px solid var(--border-color);
}

.adm-passcode-input.seperated .adm-passcode-input-cell:not(:last-child) {
  margin-right: var(--cell-gap);
}

.adm-passcode-input.seperated .adm-passcode-input-cell.focused {
  border-color: var(--adm-color-primary);
  box-shadow: 0 0 4px 0 var(--adm-color-primary);
}

.adm-passcode-input.seperated.focused {
  outline: none;
}

.adm-passcode-input.seperated.error {
  animation: 100ms ease-in-out 0s 3 normal none running adm-shake-horizontal;
}

.adm-passcode-input.seperated.error .adm-passcode-input-cell {
  border-color: var(--adm-color-danger);
  box-shadow: 0 0 4px 0 var(--adm-color-danger);
}

.adm-passcode-input-cell.dot::before {
  content: '';
  width: var(--dot-size);
  height: var(--dot-size);
  border-radius: 50%;
  background: var(--adm-color-text);
}

.adm-passcode-input-cell.caret::after {
  content: '';
  width: 4px;
  height: 1.1em;
  margin-left: 2px;
  background: var(--adm-color-primary);
  animation: 1s linear infinite adm-caret-blink;
}

.adm-passcode-input > .adm-passcode-input-native-input {
  position: absolute;
  left: -200vw;
  top: 0;
  display: block;
  width: 100px;
  height: 40px;
  opacity: 0.5;
}

@keyframes adm-shake-horizontal {
  0% {
    transform: translateX(0);
  }

  10% {
    transform: translateX(-8px);
  }

  20% {
    transform: translateX(10px);
  }

  30% {
    transform: translateX(-2px);
  }

  40% {
    transform: translateX(16px);
  }

  50% {
    transform: translateX(0);
  }

  60% {
    transform: translateX(-16px);
  }

  70% {
    transform: translateX(2px);
  }

  80% {
    transform: translateX(-10px);
  }

  90% {
    transform: translateX(8px);
  }

  100% {
    transform: translateX(0);
  }
}

@keyframes adm-caret-blink {
  from {
    opacity: 1;
  }

  60% {
    opacity: 1;
  }

  80% {
    opacity: 0;
  }

  to {
    opacity: 0;
  }
}