美好的一天，
原谅我，因为我的导航词汇不是最好的。如果这个问题令人困惑，我道歉。
我在导航栏上工作，需要以768px及以上的页面为中心。导航中的项目打开（或可能切换）直接位于下方的子区域。这些导航也应该显示在页面的中心。
我已经能够通过导航栏的响应部分工作，主要项目垂直对齐，每个项目的子导航菜单在下面展开，我给了他们一些分隔的缩进。这很好用。
但是，我的问题不是响应方面，而是宽度大于768px的行为。切换菜单的子导航会将其他主要项目向下推到子导航下方的页面。
这是我的代码：
$(document).ready(function () {
//stick in the fixed 100% height behind the navbar but don't wrap it
$('#slide-nav.navbar-inverse').after($('<div class="inverse" id="navbar-height-col"></div>'));
$('#slide-nav.navbar-default').after($('<div id="navbar-height-col"></div>'));
// Enter your ids or classes
var toggler = '.navbar-toggle';
var pagewrapper = '#page-content';
var navigationwrapper = '.navbar-header';
var menuwidth = '100%'; // the menu inside the slide menu itself
var slidewidth = '80%';
var menuneg = '-100%';
var slideneg = '-80%';
$("#slide-nav").on("click", toggler, function (e) {
var selected = $(this).hasClass('slide-active');
$('#slidemenu').stop().animate({
left: selected ? menuneg : '0px'
});
$('#navbar-height-col').stop().animate({
left: selected ? slideneg : '0px'
});
$(pagewrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(navigationwrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(this).toggleClass('slide-active', !selected);
$('#slidemenu').toggleClass('slide-active');
$('#page-content, .navbar, body, .navbar-header').toggleClass('slide-active');
});
var selected = '#slidemenu, #page-content, body, .navbar, .navbar-header';
$(window).on("resize", function () {
if ($(window).width() > 767 && $('.navbar-toggle').is(':hidden')) {
$(selected).removeClass('slide-active');
}
});
}); .containerFluid {
width: 1280px;
margin: 0 auto;
}
@media (max-width:767px) {
.subMenuDiv {
position: realtive;
}
}
body.slide-active {
overflow-x: hidden
}
/*first child of #page-content so it doesn't shift around*/
.no-margin-top {
margin-top: 0px!important
}
#slide-nav .navbar-toggle .icon-bar {
background: white;
}
/*wrap the entire page content but not nav inside this div if not a fixed top, don't add any top padding */
#page-content {
position: relative;
padding-top: 70px;
left: 0;
}
#page-content.slide-active {
padding-top: 0
}
/* put toggle bars on the left :: not using button */
#slide-nav .navbar-toggle {
cursor: pointer;
position: relative;
line-height: 0;
float: left;
margin: 0;
width: 30px;
height: 40px;
padding: 10px 0 0 0;
border: 0;
background: transparent;
}
/* icon bar prettyup - optional */
#slide-nav .navbar-toggle > .icon-bar {
width: 100%;
display: block;
height: 3px;
margin: 5px 0 0 0;
}
#slide-nav .navbar-toggle.slide-active .icon-bar {
background: orange
}
.navbar-header {
position: relative
}
#page-content {
width: 1280px;
margin: 0 auto;
}
/* un fix the navbar when active so that all the menu items are accessible */
.navbar.navbar-fixed-top.slide-active {
position: relative
}
@media (max-width:767px) {
#slide-nav .container {
margin: 0!important;
padding: 0!important;
height: 100%;
}
#slide-nav .navbar-header {
margin: 0 auto;
padding: 0 15px;
}
#slide-nav .navbar.slide-active {
position: absolute;
width: 80%;
top: -1px;
z-index: 1000;
}
#slide-nav #slidemenu {
background: #f7f7f7;
left: -100%;
width: 80%;
min-width: 0;
position: absolute;
padding-left: 0;
z-index: 2;
top: -8px;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav {
min-width: 0;
width: 100%;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav .dropdown-menu li a {
min-width: 0;
width: 80%;
white-space: normal;
}
#slide-nav {
border-top: 0
}
#slide-nav.navbar-inverse #slidemenu {
background: #333
}
/* this is behind the navigation but the navigation is not inside it so that the navigation is accessible and scrolls*/
#navbar-height-col {
position: fixed;
top: 0;
height: 100%;
bottom: 0;
width: 80%;
left: -80%;
background: #f7f7f7;
}
#navbar-height-col.inverse {
background: #333;
z-index: 1;
border: 0;
}
#slide-nav .navbar-form {
width: 100%;
margin: 8px 0;
text-align: center;
overflow: hidden;
/*fast clearfixer*/
}
#slide-nav .navbar-form .form-control {
text-align: center
}
#slide-nav .navbar-form .btn {
width: 100%
}
}
@media (min-width:768px) {
#page-content {
left: 0!important
}
.navbar.navbar-fixed-top.slide-active {
position: fixed
}
.navbar-header {
left: 0!important
}
}<div class="navbar navbar-inverse navbar-fixed-top" role="navigation" id="slide-nav">
<div class="containerFluid">
<div class="navbar-header">
<a class="navbar-toggle">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
</div>
<div id="slidemenu">
<ul class="nav navbar-nav">
<li><a href="#" data-toggle="collapse" data-target="#sec1">Section 1</a>
<div class="subMenuDiv">
<ul class="nav nav-justified collapse" id="sec1">
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 1 1</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 1 2</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 1 3</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 1 4</span></a></li>
</ul>
</div>
</li>
<li><a href="#" data-toggle="collapse" data-target="#sec2">Section 2</a>
<div class="subMenuDiv">
<ul class="nav nav-justified collapse" id="sec2">
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 2 1</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 2 2</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 2 3</span></a></li>
<li><a href="#" class="nav-item" id=""><span class="nav-item-name">Sub-Section 2 3</span></a></li>
</ul>
</div>
</li>
<li><a href="#" data-toggle="collapse" data-target="#xbprom">Section 3</a>
<div class="subMenuDiv">
<ul class="nav nav-justified collapse" id="xbprom">
<li><a href="#" class="xbnav-item" id=""><span class="xbnav-item-name">Sub-Section 3 1</span></a></li>
<li><a href="#" class="xbnav-item" id=""><span class="xbnav-item-name">Sub-Section 3 2</span></a></li>
<li><a href="#" class="xbnav-item" id=""><span class="xbnav-item-name">Sub-Section 3 3</span></a></li>
</ul>
</div>
</li>
</ul>
这里是一个小提琴https://jsfiddle.net/8j600vmd/4/为简洁起见，缺少一些风格元素。
答案 0 :(得分：1)
这是一种方法：将subMenuDiv从<li>下移出，然后将子菜单放在该div中。这样他们就会出现在菜单下面，而不必使用position：absolute。 Xnay一些花车和文字对齐到中心，中提琴！我没有添加js以使其他人接近。