.topbar{
  width: 100%;
  height: 60px;
  position: fixed;
  left: 0;
  top: 0;
  background-color: #222222;
}
.topbar .topnav{
  margin-right: 80px;
}
.topbar .topnav li{
  float: left;
  list-style: none;
  padding: 0 16px;
}

.topbar .topnav li a{
  display: block;
  color: #fff;
  height: 60px;
  line-height: 60px;
  font-size: 18px;
}

.mt80{
  margin-top: 80px;
}
.mt10{
  margin-top: 10px;
}


/* override */
.lnb{
  top: 60px;
}
#resizer{
  top: 60px;
}
.main{
  top: 60px;
}