bootstrap:仅针对特定模态更改模态背景不透明度

问题描述

我有一个包含多个模式的菜单.当我打开一个在另一个上时，它会将背景变成黑色，这很难看.我知道我需要更改 filter: alpha(opacity=80); in .modal-backdrop.fade.in in bootstrap.css.但我需要更改它不是针对所有模态，仅针对其中一些模态.这是第一个模态的html代码

I have a menu with multiple modals. When I open one over another it turns backgrount into black, which is ugly. I understand that I need change filter: alpha(opacity=80); in .modal-backdrop.fade.in in bootstrap.css. But I need to change it not for all modals, only for some of them. Here's the html code for first modal

    <div class="modal hide" id="mbusModal">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal">×</button>
            <h3>MBUS</h3>
        </div>
        <div class="modal-body">
            <form class="form-horizontal">
                <form class="well form-inline">
                    <input type="button" class="btn" onclick="$('#dinMbusModal').modal('show'); $('#tabsMbusDin a:last').tab('show');" value="din">
                </form>
            </div>
        <div class="modal-footer">
            <a href="#" class="btn" data-dismiss="modal">Закрыть</a>
            <a href="#" class="btn btn-primary" onclick="addPort('mbus',$('#mbusDev').val(),$('#mbusSpeed').val()); $('#mbusModal').modal('hide')">Применить</a>
        </div>

这个模态需要改变他的背景:

This modal needs to change his backdrop:

    <div class="modal hide" id="dinMbusModal" style="width: 500px; margin: -250px 0 0 -250px;">
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal">×</button>
            <h3>DIN</h3>
        </div>
        <div class="modal-body">
        </div>
        <div class="modal-footer">
            <a href="#" class="btn" data-dismiss="modal">Закрыть</a>
            <a href="#" class="btn btn-primary" onclick="addPort('din_mbus',,); $('#dinMbusModal').modal('hide')">Применить</a>
        </div>
    </div>

推荐答案

背景是由 Modal 插件动态生成的，这有点复杂.一种可能的方法是在收到 show 事件时向 body 添加一个类，然后在 hidden 上将其删除.

Little bit complicated by the fact that the backdrop is generated by the Modal plugin on the fly. One possible way of doing it is adding a class to the body when you get a show event, then remove it on the hidden.

类似:

.modal-color-red .modal-backdrop {
  background-color: #f00;
}
.modal-color-green .modal-backdrop {
  background-color: #0f0;
}
.modal-color-blue .modal-backdrop {
  background-color: #00f;
}

JS

$('.modal[data-color]').on('show hidden', function () {
  $('body').toggleClass('modal-color-'+ $(this).data('color'));
});

HTML

<div class="modal hide fade" id="redModal" data-color="red">...</div>
<div class="modal hide fade" id="greenModal" data-color="green">...</div>
<div class="modal hide fade" id="blueModal" data-color="blue">...</div>

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