.content {
  clear: both;
  width: 1200px;
  margin: 0px auto;
  background-color: #fff;
}

a {
  text-decoration: none;
}

a:link,
a:visited {
  color: #333;
}

a:hover {
  color: #c00;
  text-decoration: underline;
}

.header {
  height: 54px;
  margin-bottom: 25px;
}

.title {
  color: #4ab344;
}

.online-head {
  position: relative;
}

.online-content {
  display: flex;
  justify-content: space-between;
}

.online-item {
  width:290px;
  margin-right: 6px;
}

.more {
  position: absolute;
  right: 0;
  top: 0;
}

.aboutus {
  margin-top: 25px;
  width: 100%;
}
.xuehui{
  display: flex;
}
.xuehui-link{
  display: block;
}
.xuehui-time{
  text-align: right;
}