{
  // 位置
  position: xx;
  top: xx;
  right: xx;
  bottom: xx;
  left: xx;
  z-index: xx;
  display: xx;
  flex-direction: xx;
  justify-content: xx;
  align-items: xx;
  float: xx;
  ...
  // 大小
  width: xx;
  height: xx;
  box-sizing: xx;
  margin: xx;
  padding: xx;
  // 文字相关
  font-family: xx;
  font-size: xx;
  color: xx;
  line-height: xx;
  ...
  // 背景相关
  background: xx;
  // 边框
  border: xxx;
  // 其他
  box-shadow: xx;
  animation: xx;
  transition: xx;
  ...
}