body {
  font-family: microsoft yahei, Arial;
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6,
ol,
li,
ul,
p,
dl,
dt,
dd {
  padding: 0;
  margin: 0;
}
ul,
ol,
li,
dl,
dt,
dd {
  text-decoration: none;
  list-style: none;
}
.lf {
  float: left;
}
.rt {
  float: right;
}
.clear {
  clear: both;
}
.ovh {
  overflow: hidden;
}
a {
  color: #303030;
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
input {
  border: none;
  outline: none;
}
img {
  border: none;
}