/* body * {
  box-sizing: border-box;
  flex-shrink: 0;
}
body {
  font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma,
    Arial, PingFang SC-Light, Microsoft YaHei;
} */
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-row {
  display: flex;
  flex-direction: row;
}

.justify-center {
  display: flex;
  justify-content: center;
}

.justify-between {
  display: flex;
  justify-content: space-between;
}

.align-center {
  display: flex;
  align-items: center;
}

.align-stretch {
  display: flex;
  align-items: stretch;
}