* {
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei";
}
body {
  /* background: #f7f7f7; */
  background: #fff;
}
a {
  text-decoration: none;
  color: #000;
}
.w {
  width: 998px;
  margin: 0 auto;
}