*{
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  box-sizing: border-box;
}
body{
  margin: 0;
  padding: 0;
  border: none;
  background: #ffffff;
  font-size: 14px;
  font-family: "微软雅黑", "宋体";
}
a{
  text-decoration: none;
}