清除样式的css

html, body, div, ul, li, h1, h2, h3, h4, h5, h6, p, dl, dt, dd, ol, form, input, textarea, th, td, select {
  margin: 0;
  padding: 0;
}
body {
  font-family: "Microsoft YaHei";
}
ul,ol {
  list-style: none;
}
a {
  text-decoration: none;
}
table{
    border:0;
    margin:0;
    border-collapse:collapse;
    border-spacing:0;
}
table th,table td{
    padding:0;
}