.sitemap .flex{
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
     -ms-flex-pack: justify;
   justify-content: space-between;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
}

.sitemap .flex > div{
  width:480px;
}