#login-grid {
  height: calc(100% - 115px); 
  margin: 0; 
}

#login-grid>.column {
  max-width: 500px;
}

#admin-left-menu {
  max-width: 200px;    
}

#admin-top-menu {
  display: none;
  max-height: 60px;
}

#admin-right-content {  
  padding-left: 200px;
}

@media only screen and (max-width: 550px) {

  #admin-left-menu {
    display: none;
  }

  #admin-top-menu {
    display: block;
  }

  #admin-right-content {
    padding-top: 60px;
    padding-left: 0px;
  }  
}