@import url('reset.css');
@import url('head_foot.css');
@import url('index.css');
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #E7EBEF;
}
#content {
  flex: 1;
  width: 1280px;
  margin: 0 auto;
  padding: 16px 30px;
}
#content .none {
  width: 317px;
  height: 210px;
  display: block;
  margin: 0 auto;
}