我尝试了以下方法:

   <div class="modal hide fade modal-admin" id="testModal" style="display: none;">
        <div class="modal-header">
          <a data-dismiss="modal" class="close">×</a>
          <h3 id='dialog-heading'></h3>
        </div>
        <div class="modal-body">
            <div id="dialog-data"></div>
        </div>
        <div class="modal-footer">
          <a data-dismiss="modal" class="btn" >Close</a>
          <a class="btn btn-primary" id="btnSaveChanges">Save changes</a>
        </div>
    </div>

这段Javascript:

    $('.modal-admin').css('width', '750px');
    $('.modal-admin').css('margin', '100px auto 100px auto');
    $('.modal-admin').modal('show')

结果不是我预料的那样。模态的左上角位于屏幕的中心。

有人能帮帮我吗?有人试过吗?我想这是一件很平常的事。


当前回答

与其使用百分比来使模式响应,我发现可以通过使用已经内置到bootstrap中的列和其他响应元素来获得更多的控制。


要使模态响应/任意数量的列的大小: 1)在模态对话框div周围添加一个额外的div,类为.container -

<div class="container">
    <div class="modal-dialog">
    </div>
</div>

2)添加一点CSS,使模式全宽

.modal-dialog {
    width: 100% }

3)如果你有其他情态动词,可以选择增加一个额外的类-

<div class="container">
    <div class="modal-dialog modal-responsive">
    </div>
</div>

.modal-responsive.modal-dialog {
    width: 100% }

4)添加在一行/列,如果你想要各种大小的情态动词-

<div class="container">
  <div class="row">
    <div class="col-md-4">
      <div class="modal-dialog modal-responsive">
       ...
      </div>
    </div>
  </div>
</div>

其他回答

3.引导x.x

   <!-- Modal -->
<div class="modal fade" id="employeeBasicDetails" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
    <div class="modal-dialog modal-sm employeeModal" role="document">

        <form>

        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                <h4 class="modal-title" id="myModalLabel">Modal Title</h4>
            </div>

            <div class="modal-body row">
                Modal Body...
            </div>

            <div class="modal-footer"> 
                <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
            </div>
        </div>

        </form>

    </div>
</div>

注意,我在第二个div中添加了. employeemodal类。然后设置该类的样式。

.employeeModal{
        width: 700px;
    }

我找到了一个更适合我的方法。你可以用这个:

$('.modal').css({
  'width': function () { 
    return ($(document).width() * .9) + 'px';  
  },
  'margin-left': function () { 
    return -($(this).width() / 2); 
  }
});

或者根据你的要求:

$('.modal').css({
  width: 'auto',
  'margin-left': function () {
     return -($(this).width() / 2);
  }
});

请看我发现的帖子: https://github.com/twitter/bootstrap/issues/675

在Bootstrap的v3中,有一个简单的方法使模态变大。只需在modal-dialog旁边添加类modal-lg。

<!-- My Modal Popup -->
<div id="MyWidePopup" class="modal fade" role="dialog">
    <div class="modal-dialog modal-lg"> <---------------------RIGHT HERE!!
        <!-- Modal content-->
        <div class="modal-content">

在Bootstrap 3中,你所需要的就是这个

<style>
    .modal .modal-dialog { width: 80%; }
</style>

上面的大部分答案对我来说都没用!!

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script> <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" /> <style> #myModal1 .modal-dialog { width: 80%; } #myModal2 .modal-dialog { width: 50%; } </style> <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal1"> 80% </button> <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal2"> 50% </button> <center> <!-- Modal --> <div class="modal fade" id="myModal1" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span> </button> <h4 class="modal-title" id="myModalLabel">Modal title</h4> </div> <div class="modal-body"> custom width : 80% </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> <button type="button" class="btn btn-primary">Save changes</button> </div> </div> </div> </div> <!-- Modal --> <div class="modal fade" id="myModal2" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span> </button> <h4 class="modal-title" id="myModalLabel">Modal title</h4> </div> <div class="modal-body"> custom width : 50% </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> <button type="button" class="btn btn-primary">Save changes</button> </div> </div> </div> </div> </center>

使用Bootstrap 3,所需要的只是通过CSS给模态对话框一个百分比值

CSS

#alertModal .modal-dialog{
     width: 20%;
}