body * {
  box-sizing: border-box;
}
body {
  font-family: PingFangSC-Regular, Roboto, Helvetica Neue, Helvetica, Tahoma,
    Arial, PingFang SC-Light, Microsoft YaHei;
  margin: 0;
  padding: 0;
  font-size: 14px;
  background: #EEF1F7;
  color: #000;
  letter-spacing: 1px;
}

div{
  box-sizing: border-box;
}
img{
  vertical-align: middle;
}