定位“包装纸” div在固定导航栏下面？ [英] Positioning a "wrapper" div underneath a fixed navigation bar?

问题描述

我开始在一个全新的网站上工作，我已经玩了一段时间的设计，但我似乎有一个问题是关于定位导航栏的全屏幕宽度固定为滚动。下面我创建了一个名为wrapper的 div ，它的宽度设置为 980px 。下面是代码示例;

I've started work on a brand new site and i've been playing around with designs for a while, however one problem I seem to be having is regarding positioning a navigation bar with a full screen width that is fixed to scroll. Underneath i have created a div called "wrapper" which is set to centre at a width of 980px. Below is code example;

<style>
    #navBar {
        background: RGB(0, 0, 0);
        height: 30px;
        position: fixed;
        width: 100%;
    }

    #wrapper {
        margin: 0 auto;
        width: 980px;
    }
</style>

<div id="navBar">

</div>

<div id="wrapper">
    <div style="border: 1px solid RGB(0, 0, 0); float: left; height: 500px; margin: 5px; width: 400px;"></div>
</div>

在wrapper中创建的框应该显然不是因为我做错了 - 某处）坐在 navBar 下面 5px ，但是因为我使用 position：fixed 它位于它的下面。任何人都可以告诉我我如何解决这个问题，让它包装器正下方而不是下面的navbar，同时保持它的中心？

The box i created within "wrapper" SHOULD (obviously isn't because i'm doing something wrong - somewhere) sit 5px below the navBar, however because I have used position: fixed it sits underneath it instead. Could anybody lead me to how I solve this issue and have it so that the wrapper sits directly below rather than underneath the navbar whilst maintaining it's centering?

推荐答案

设置 top：0 ，并在 wrapper div

#navBar {
    background: RGB(0, 0, 0);
    height: 30px;
    position: fixed;
    width: 100%;
    top:0
}
#wrapper {
    margin: 30px auto 0;
    width: 980px;
}

http://jsfiddle.net/duncan/NkRxQ/

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