#content {
   display: -webkit-flex;
   display: flex;
   -webkit-flex-direction: column;
   flex-direction: column;
   -webkit-align-content: stretch;
   align-content: stretch;
}
article {
   order: 1;
}
#comments {
   order: 2;
}
#jp-relatedposts {
   order: 3;
}
#nav-below {
   order: 4;
}