Javascript 引导模式响应垂直定心？

如何使引导模式垂直居中？我在这里四处寻找解决方案，但他们没有反应，或者根本不起作用。我正在使用bootsrap3

使用以下解决方案后，当屏幕变小或调整浏览器窗口大小时，模式不再响应

jquery

$('.modal').on('shown.bs.modal', function() {
            $(this).find('.modal-dialog').css({
                'margin-top': function () {
                    return -($(this).outerHeight() / 2);
                },
                'margin-left': function () {
                    return -($(this).outerWidth() / 2);
                }
            });
        });

css

引导

<!-- Button trigger modal -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="false">
  <div class="modal-dialog custom-class">
    <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">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </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>

$('#myModal').on('shown.bs.modal', function (e) {

            var object = $('.modal-dialog');
            var object_outerheight = object.outerHeight();
            var window_height = $(window).height();
            var window_scrolltop = $(window).scrollTop();
            var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
            console.log(object_top);

            // Set the object's position.
            object.css({
                marginTop: object_top + 'px'
            }).fadeIn();

            // Add responsive when the window is being resized.
            $( window ).resize(function() {

                // Redo the calc on each resize's action.
                var window_height = $(window).height();
                var window_scrolltop = $(window).scrollTop();
                var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
                console.log(object_top);

                // Reset the object's position.
                object.css({
                    marginTop: object_top + 'px'
                });

            });
        });

在较小的屏幕上，模式只是回到默认位置，但我希望它垂直居中

此外，

top:25%根本不能使它完全垂直居中。
我想就是这样

css

jquery+bootstrap

<!-- Button trigger modal -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="false">
  <div class="modal-dialog custom-class">
    <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">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </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>

$('#myModal').on('shown.bs.modal', function (e) {

            var object = $('.modal-dialog');
            var object_outerheight = object.outerHeight();
            var window_height = $(window).height();
            var window_scrolltop = $(window).scrollTop();
            var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
            console.log(object_top);

            // Set the object's position.
            object.css({
                marginTop: object_top + 'px'
            }).fadeIn();

            // Add responsive when the window is being resized.
            $( window ).resize(function() {

                // Redo the calc on each resize's action.
                var window_height = $(window).height();
                var window_scrolltop = $(window).scrollTop();
                var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
                console.log(object_top);

                // Reset the object's position.
                object.css({
                    marginTop: object_top + 'px'
                });

            });
        });

我想就是这样

css

jquery+bootstrap

<!-- Button trigger modal -->
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
  Launch demo modal
</button>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true" data-backdrop="false">
  <div class="modal-dialog custom-class">
    <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">Modal title</h4>
      </div>
      <div class="modal-body">
        ...
      </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>

$('#myModal').on('shown.bs.modal', function (e) {

            var object = $('.modal-dialog');
            var object_outerheight = object.outerHeight();
            var window_height = $(window).height();
            var window_scrolltop = $(window).scrollTop();
            var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
            console.log(object_top);

            // Set the object's position.
            object.css({
                marginTop: object_top + 'px'
            }).fadeIn();

            // Add responsive when the window is being resized.
            $( window ).resize(function() {

                // Redo the calc on each resize's action.
                var window_height = $(window).height();
                var window_scrolltop = $(window).scrollTop();
                var object_top = ((window_height - object_outerheight)/2) + window_scrolltop;
                console.log(object_top);

                // Reset the object's position.
                object.css({
                    marginTop: object_top + 'px'
                });

            });
        });

使用css，我们可以将引导模式放置在垂直中心

    .modal {
        text-align: center;
        padding: 0!important;
    }

    .modal:before {
        content: '';
        display: inline-block;
        vertical-align: middle;
        margin: -2px;
        height: 100%;
    }

    .modal-dialog {
        display: inline-block;
        vertical-align: middle;
    }

使用css，我们可以将引导模式放置在垂直中心

    .modal {
        text-align: center;
        padding: 0!important;
    }

    .modal:before {
        content: '';
        display: inline-block;
        vertical-align: middle;
        margin: -2px;
        height: 100%;
    }

    .modal-dialog {
        display: inline-block;
        vertical-align: middle;
    }

你说模态不再响应是什么意思？你说模态不再响应是什么意思<代码>var window_scrolltop=$（window.scrolltop（）对我来说是一个糟糕的工作（我的模态显示在页面下方，我不得不可笑地滚动到很远），所以我删除了这一行（以及下一行的
+窗口\u scrolltop
）。我还在页边空白处加了一张支票，保证不低于零。（因为在非常小的屏幕尺寸上，我的modal顶部从屏幕上脱落）否则：谢谢你的回答<代码>var window_scrolltop=$（window.scrolltop（）对我来说是一个糟糕的工作（我的模态显示在页面下方，我不得不可笑地滚动到很远），所以我删除了这一行（以及下一行的
+窗口\u scrolltop
）。我还在页边空白处加了一张支票，保证不低于零。（因为在非常小的屏幕尺寸上，我的modal顶部从屏幕上脱落）否则：谢谢你的回答！