* {
  margin: 0;
  padding: 0;
}
li {
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
ul {
  list-style-type: none;
  overflow: auto;
}
body,
html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  color: #333;
}
.content {
  width: 1440px;
  height: auto;
  overflow-y: auto;
}