Bootstrap 3: pull-right for col-lg only

Answer 1

Works fine too:

/* small screen portrait */

@media (max-width: 321px) {

  .pull-right { 
    float: none!important; 
  }

}


/* small screen lanscape */

@media (max-width: 480px) {

  .pull-right {
    float: none!important; 
  }

}