#content-container{
  flex: 1; /* Fill space below header */
  display: flex;
  flex-direction: row;
  overflow: hidden; /* This keeps popup windows from exceeding
  the size of the window */
}

#content-main{
  flex: 1;
  display: flex;
  flex-direction: column;
}

#content-map{
  flex: 1;
}