html{
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}
*{
  margin: 0;
  padding: 0;
}
body{
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "Microsoft YaHei",sans-serif;
}
img{
  display: block;
}
a{
  text-decoration: none;
}
a:hover{
  text-decoration: none;
}
a:active{
  text-decoration: none;

}
a:visited{
  text-decoration: none;
}
a:link{
  text-decoration: none;
}