Bootstrap 3 - 显示所有屏幕尺寸的折叠导航 [英] Bootstrap 3 - show collapsed navigation for all screen sizes

问题描述

我使用的是 Bootstrap v3.

I am using Bootstrap v3.

我有导航栏类，这样当我的屏幕移动大小时，导航会折叠并出现类似网格的小切换按钮 - 所以这按预期工作.

I have the navbar classes in place so that when I have my screen mobile-size the navigation collapses and the little grid-like toggle button appears - so this is working as expected.

我想要的是，这是所有屏幕尺寸的默认操作.也就是说，即使在桌面上，我也希望导航折叠起来并且切换按钮可见.

what i would like, is for this to be the default action for all screen sizes. That is, even on a desktop I would like the navigation to be collapsed and the toggle button to be visible.

我已经浏览了 css，有一大堆东西提供了功能，但我不知道要更改哪些部分.

I've had a look through the css and there is a whole bunch of stuff that provides the functionality, though I don't know which parts to change.

我试过注释掉较大的媒体查询，尽管它们很多，而且似乎对其他样式有连锁反应.

I've tried commenting out the larger media-queries, though there are a lot of them and it seems to have a knock-on effect to other styling.

有什么想法吗?

推荐答案

你可以像这样使用覆盖默认的 Bootstrap CSS...

You can use override the default Bootstrap CSS like this...

    .navbar-header {
        float: none;
    }
    .navbar-toggle {
        display: block;
    }
    .navbar-collapse {
        border-top: 1px solid transparent;
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .navbar-collapse.collapse {
        display: none!important;
    }
    .navbar-nav {
        float: none!important;
        margin: 7.5px -15px;
    }
    .navbar-nav>li {
        float: none;
    }
    .navbar-nav>li>a {
        padding-top: 10px;
        padding-bottom: 10px;
    }

演示:http://www.bootply.com/114896

这将通过覆盖 Bootstrap @media 查询来确保始终使用折叠的导航栏.

This will ensure that the collapsed navbar is always used by overriding the Bootstrap @media queries.

更新:对于 Bootstrap 4，您只需要删除 navbar-toggleable 类:http://www.codeply.com/go/LN6szcJO53

Update: For Bootstrap 4, you just need to remove the navbar-toggleable class: http://www.codeply.com/go/LN6szcJO53

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