html - Modal height not increasing -

i have modal given here below:

the modal has large enough have first text field , check button beside each other, , second text field , check button beside each other. tried increase height , width of modal, succeeded in increasing width. height becoming smaller, when trying customise modal size. using modal-lg had same effect. code given below:

<div id="addqueue" class="modal fade" role="dialog">     <div class="modal-dialog addqueue-modal">         <div class="modal-content">             <div class="modal-header">                 <button type="button" class="close" data-dismiss="modal">&times;</button>                     <h4 class="modal-title">add queue desk</h4>             </div>             <div class="modal-body">                 <form role="form">                     <div class="form-group">                         <div class="col-sm-7">                             <label for="queuename">name queue: </label>                             <input type="text" class="form-control" id="queuename">                         </div>                         <div class="checkbox">                             <label><input type="checkbox" value="closedqueue">create closed queue; open when ready</label>                         </div>                          </div>                         <div class="form-group">                             <div class="col-md-7">                                 <label for="queueinfo">additional information queue: </label>                                 <input type="text" class="form-control" id="queueinfo">                             </div>                             <span class="checkbox">                                 <label><input type="checkbox" value="tooltipdisplay">display tooltip when hovering on queue</label>                             </span>                         </div>                         <hr>                 </form>             </div>         </div>     </div> </div> 

the relevant css given below:

.addqueue-modal{      width: 1000px;     max-height: 1000px; } 

does know how can fix modal have text fields , checkboxes in same lines described earlier? in advance!

try this

.addqueue-modal{     width: 1000px;     max-height: 1000px;     overflow-y: auto; }