Bootstrap 4固定顶部导航和固定侧栏 [英] Bootstrap 4 fixed top nav and fixed sidebar

问题描述

这是一个如何使用边栏创建导航栏的好例子.任何人都可以修改代码，以使顶部导航固定在顶部，而侧边栏仅在滚动主页内容的情况下是固定/静态的吗?我可以通过将class="fixed-top"分配给nav来使导航栏最固定，但是我无法弄清楚如何固定侧边栏，使其保持在同一位置，而不是向上滚动主栏.页面内容.将class="sticky-top"应用于侧边栏似乎无效.

This is a great example of how to create a navbar with a sidebar. Can anyone modify the code so that the top nav is top-fixed and the sidebar fixed/static with only the main page content scrolling? I can make the nav the nav top-fixed by assigning the class="fixed-top" to the nav, but I can't figure out how to make the sidebar fixed so that it remains in the same spot instead of scrolling up with the main page content. Applying class="sticky-top" to the sidebar doesn't seem to work.

<nav class="navbar navbar-expand-md navbar-dark bg-primary fixed-top">
    ..
</nav>
<div class="row">
    <div id="sidebar-container" class="sidebar-expanded d-none d-md-block">
        <ul class="list-group sticky-top">
            <li>Menu item..</li>
            <li>Menu item..</li>
        </ul>
    </div>
    <div class="col">
        <!-- MAIN -->
    </div>
</div>

https://www.codeply.com/go/LFd2SEMECH

推荐答案

sticky-top 正在工作，但是由于两个原因，它似乎没有工作...

The sticky-top is working, but it doesn't appear to be working for two reasons...

1. 主要内容区域中没有足够的内容来滚动
2. 它位于top:0处，因此隐藏在固定的导航栏后面

1. There isn't enough content in the main content area to scroll
2. It's positioned at top:0 so it hides behind the fixed navbar

添加CSS以补偿边栏的顶部(与固定导航栏的高度相同).

Add CSS to offset the top of the sidebar (the same as height of fixed navbar).

.sticky-offset {
    top: 56px;
}

<ul class="list-group sticky-top sticky-offset">..(sidebar)..</div>

然后，在主区域中添加足够的内容(或高度)，以便有必要进行滚动...

And, then add enough content (or height) in the main area so that scrolling is necessary...

正在运行的演示: https://www.codeply.com/go/7XYosZ7VH5

<nav class="navbar navbar-expand-md navbar-dark bg-primary fixed-top">
    ..
</nav>
<div class="row">
    <div id="sidebar-container" class="sidebar-expanded col-2 d-none d-md-block">
        <ul class="list-group sticky-top sticky-offset">
            <li>Menu item..</li>
            <li>Menu item..</li>
        </ul>
    </div>
    <div class="col">
        <!-- MAIN -->
    </div>
</div>

这篇关于Bootstrap 4固定顶部导航和固定侧栏的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！