我的html代码：(它在Django for循环中)

    <div class="modal fade " id="{{ p.id }}" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true" >
      <div class="modal-dialog modal-lg">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
            <h4 class="modal-title" id="myModalLabel">Producto</h4>
          </div>
          <div class="modal-body">
            <h5>Nombre : {{ p.name}}</h5>       
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">Cerrar</button>

          </div>

        </div>
      </div>
    </div>

CSS设置：

.modal-lg {
  max-width: 900px;}
@media (min-width: 768px) {
   .modal-lg {
    width: 100%;
  } 
}
@media (min-width: 992px) {
  .modal-lg {
    width: 900px;
  }
}