Bootstrap Navbar（以及顶部栏）锚标签导航导航栏后面的内容 [英] Bootstrap Navbar (along with topbar) anchor tag navigates content behind the navbar
问题描述
我在同一页面中有顶栏和带有锚标记的导航栏。当我点击锚标签时，anchortag的内容确实会在导航栏后面。请在下面找到代码：HTML：
I do have the topbar along with navbar with anchor tag in the same page. When I click on the anchor tag the content of anchortag does go behind the navbar. Please find below the code: HTML:
<body>
<!-- Full Body Container -->
<div id="container">
<!-- Start Header Section -->
<header id="header-wrap" class="site-header clearfix">
<!-- Start Top Bar -->
<div class="top-bar">
<div class="container">
<div class="row">
<div class="col-lg-6 col-md-7 col-sm-8 col-xs-6">
<!-- Start Contact Info -->
<ul class="contact-details hidden-xs">
<li>
<a href="contact.html">
<i class="icon-envelope">
</i>
<span class="hidden-xs">the email address</span>
</a>
</li>
<li>
<a href="#">
<i class="icon-call-out">
</i>
<span class="hidden-xs"> Call Us: 123456789 </span>
</a>
</li>
</ul>
<!-- End Contact Info -->
</div>
<div class="col-lg-6 col-md-5 col-sm-4 col-xs-12">
<!-- Start Social Links -->
<ul class="social-list">
<li class = "hidden-sm hidden-md hidden-lg">
<a href="#">
<i class="icon-call-out">
</i>
</a>
</li>
<li class = "hidden-sm hidden-md hidden-lg">
<a href="#">
<i class="icon-envelope">
</i>
</a>
</li>
<li>
<a href="#" class="social-link facebook" title="Facebook" href="#"><i class="fa fa-facebook"></i></a>
</li>
<li>
<a href="#" class="social-link twitter" title="Twitter" href="#"><i class="fa fa-twitter"></i></a>
</li>
<li>
<a href="#" class="social-link google" title="Google Plus" href="#"><i class="fa fa-google-plus"></i></a>
</li>
<li>
<a href="#" class="social-link linkdin" data-toggle="tooltip" data-placement="bottom" title="Linkedin" href="#"><i class="fa fa-linkedin"></i></a>
</li>
</ul>
<!-- End Social Links -->
</div>
</div>
</div>
</div>
<!-- End Top Bar -->
<!-- Start Logo & Navigation -->
<div id= "fixedbar" class="navbar navbar-default navbar-top" role="navigation" data-spy="affix" data-offset-top="50">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<!-- Stat Toggle Nav Link For Mobiles -->
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<!-- End Toggle Nav Link For Mobiles -->
<div class="logo-wrapper">
<a class="navbar-brand" href="index.html">
<img src="assets/img/logo6.png" alt="SB Construction">
</a>
</div>
</div>
<!-- Brand and toggle menu for mobile ends -->
<div class="navbar-collapse collapse">
<!-- Start Navigation List -->
<ul class="nav navbar-nav navbar-right">
<li>
<a class="active" href="index.html">Home</a>
<ul class="dropdown">
<li id= "toplinks">
<a href="#whoweare">
Who We Are
</a>
</li>
<li id= "toplnks">
<a href="#ourvision">
Our Mission
</a>
</li>
<li id= "toplnked">
<a href= "#ourvision">
Our Vision
</a>
</li>
</ul>
</li>
<li>
<a href="services.html">Services</a>
</li>
<li>
<a href="contact.html">Contact</a>
</li>
</ul>
<!-- End Navigation List -->
</div>
</div>
<!-- Mobile Menu Start -->
<ul class="wpb-mobile-menu">
<li>
<a class="active" href="index.html">Home</a>
<ul class="dropdown">
<li id= "mbil1">
<a href="#whoweare">
Who We Are
</a>
</li>
<li id= "mbil2">
<a href="#ourvision">
Our Vision
</a>
</li>
<li id= "mbil3">
<a href= "#ourmission">
Our Mission
</a>
</li>
</ul>
</li>
<li>
<a href="services.html">Services</a>
</li>
<li>
<a href="contact.html">Contact</a>
</li>
</ul>
<!-- Mobile Menu End -->
</div>
<!-- End Header Logo & Navigation -->
<div class="clearfix"></div>
</header>
<!-- End Header Section -->
这是我的CSS：
.top-bar {
background: #EEEEEE;
border-bottom: 1px solid #ddd;
}
.top-bar .contact-details li {
display: inline-block;
padding: 8px 0;
}
.top-bar .contact-details li a {
font-size: 14px;
display: block;
margin-right: 15px;
color: #999;
line-height: 32px;
}
.top-bar .contact-details li a i {
padding-right: 5px;
vertical-align: middle;
}
.top-bar ul.social-list {
float: right;
padding: 8px 0;
}
.navbar-top.affix {
width: 100%;
top: 0;
z-index: 9999999;
-webkit-animation-duration: 1s;
animation-duration: 1s;
-webkit-animation-fill-mode: both;
animation-fill-mode: both;
-webkit-animation-name: fadeInDown;
animation-name: fadeInDown;
}
.navbar-top.affix .logo-wrapper {
margin-top: 15px;
margin-bottom: 18px;
}
.navbar-top.affix .logo-wrapper .navbar-brand img {
width: 100px;
}
.navbar-top.affix .navbar-nav > li {
padding: 15px 0!important;
}
.navbar-top.affix .search-side {
top: 15px;
}
.navbar-top.affix .full-search {
top: 67px;
}
.navbar {
margin-bottom: 0;
background: #fff;
border: none;
border-bottom: 1px solid #eee;
border-radius: 0;
-webkit-border-radius: 0;
-moz-border-radius: 0;
-o-border-radius: 0;
}
.logo-wrapper {
margin-top: 19px;
margin-bottom: 17px;
float: left;
}
.navbar-brand {
padding-bottom: 0px;
display: block;
height: auto;
padding-top: 0;
}
.navbar-default .navbar-nav {
margin-right: 5px!important;
position: relative;
transition: all 0.4s ease-in-out;
-moz-transition: all 0.4s ease-in-out;
-webkit-transition: all 0.4s ease-in-out;
-o-transition: all 0.4s ease-in-out;
}
.navbar-default .navbar-nav > li {
padding: 31px 0;
}
.navbar-default .navbar-nav > li > a {
color: #999;
display: block;
font-size: 14px;
font-family: 'Lato', sans-serif;
padding: 7px 16px;
text-transform: uppercase;
font-weight: 700;
border-radius: 0px;
position: relative;
overflow: hidden;
transition: all 0.3s ease-in-out;
-moz-transition: all 0.3s ease-in-out;
-webkit-transition: all 0.3s ease-in-out;
-o-transition: all 0.3s ease-in-out;
}
.navbar-default .navbar-nav > li:hover > a,
.navbar-default .navbar-nav > li > a.active {
color: #ffbb02;
}
.navbar-default .navbar-nav > li > a i {
margin: 0 -2px 0 -5px;
}
.navbar-default .navbar-nav .dropdown {
position: absolute;
left: 0;
top: 100%;
width: 260px;
background-color: #fff;
visibility: hidden;
z-index: 999;
opacity: 0;
transition: opacity 0.3s ease-in-out;
-moz-transition: opacity 0.3s ease-in-out;
-webkit-transition: opacity 0.3s ease-in-out;
-o-transition: opacity 0.3s ease-in-out;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-o-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.navbar-default .navbar-nav > li.drop:hover .dropdown {
visibility: visible;
opacity: 1;
}
.dropdown li,
.sup-dropdown li {
position: relative;
border-bottom: 1px dotted #eee;
}
.dropdown li:last-child,
.sup-dropdown li:last-child {
border-bottom: none;
}
.dropdown li a,
.sup-dropdown li a {
display: block;
color: #666;
font-size: 14px;
font-family: 'Lato', sans-serif;
font-weight: 400;
padding: 11px 16px;
margin: 0;
text-decoration: none;
text-transform: capitalize;
transition: all 0.3s ease-in-out;
-moz-transition: all 0.3s ease-in-out;
-webkit-transition: all 0.3s ease-in-out;
-o-transition: all 0.3s ease-in-out;
}
.dropdown li a i {
margin: 0 0 0 -4px;
}
.navbar-default .navbar-nav .sup-dropdown {
position: absolute;
left: 100%;
top: 0;
width: 260px;
background-color: #fff;
margin-top: 10px;
transition: margin-top 0.2s ease-in-out;
-moz-transition: margin-top 0.2s ease-in-out;
-webkit-transition: margin-top 0.2s ease-in-out;
-o-transition: margin-top 0.2s ease-in-out;
visibility: hidden;
z-index: 3;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-o-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}
.navbar-default .navbar-nav li.drop .dropdown li:hover .sup-dropdown {
visibility: visible;
margin-top: 0;
}
.dropdown > li:hover > a,
.sup-dropdown li:hover > a {
color: #fff;
background-color: #ffbb02;
}
.dropdown li a.active,
.sup-dropdown li a.active {
color: #fff;
background-color: #ffbb02;
}
.nav > li.drop:hover ul.dropdown {
display: block;
-webkit-animation: drop-up 400ms ease both;
-moz-animation: drop-up 400ms ease both;
-o-animation: drop-up 400ms ease both;
animation: drop-up 400ms ease both;
}
@media screen and (max-width: 767px) {
.js #wpb-mobile-menu {
display: none;
}
.js .slicknav_menu {
display: block;
}
}
这是我通过stackoverflow帖子搜索的Javascript：
Here is my Javascript I searched through stackoverflow posts:
$("#toplinks, #toplnks, #toplnked").on('click','a', function(event){
event.preventDefault();
var o = $( $(this).attr("href") ).offset();
var sT = o.top - $("#fixedbar").outerHeight(true);
window.scrollTo(0,sT);
});
因此，每当我点击锚标记时，IDwhoweare的内容将从顶部开始页面（导航栏后面）。请注意我的导航栏顶部有顶部栏，滚动栏上的（顶部栏）被隐藏，导航栏位于顶部。
So whenever I click on the anchor tag the content of ID "whoweare" will start from top of the page (behind the navbar). Please note I do have topbar on the top of navbar, which(topbar) on scroll gets hidden and navbar placed at top.
另请注意，我已添加了代码索引页面（第一页），我将用于其他页面的顶栏和导航栏的相同代码（例如：服务，项目等）。
请帮我解决导航栏功能问题。
Also note, I have added the code for the index page (first page), the same code of topbar and navbar I will use for other pages (e.g: services, projects etc). Please help me out to make my navbar functions properly.
推荐答案
我让它工作了......
请阅读这些详细解释。
I got it working...
Please, read these detailled explanations.
第一次：
使用jQuery，你必须使用选择器实际上存在于您的HTML中。
在您的脚本中，#toplinks ， #toplnks ， #toplnked 和 #fixedbar 只提到绝对没有。
first:
Using jQuery, you have to use selectors that actually exist in your HTML.
In your script, "#toplinks, #toplnks, #toplnked and #fixedbar just refer to absolutely nothing.
影响是您的脚本根本就没有触发过。
您观察到的滚动效果是链接点击的自然默认行为。
The impact was that your script simply never triggered at all. The scroll effect you were observing was the natural default behaviour of a link click.
第二：
您有两个特殊情况，此脚本不应与其他链接做同样的事情。
Second:
You have two "special cases" where this script should not do the same thing as for the other links.
- 第1节需要滚动到窗口位置零，以显示
top-nav。
不应计算偏移量。
- 秒第4步打开子菜单，显示第4-1节和第4-2节。
由于这个第4节也是一个链接，你必须删除它无用的href属性（href =＃）。
然后在脚本中，你必须检查是否$（this）.attr（href）定义为避免脚本错误。
- "Section 1" needs to scroll to window position zero in order to show the
top-nav.
It should not calculate an offset.
- "Section 4" opens a sub-menu showing "Section 4-1" and "Section 4-2".
Since this "Section 4" also is a link, you have to remove its uselesshrefattribute (href="#").
Then in the script, you have to check if$(this).attr("href")is defined to avoid script error.
我留下了很多解释性的 console.log（），因为我很确定你会使用这个菜单来添加元素。
I left many explicative console.log() because I'm pretty sure that you will play with this menu to add elements to it.
您肯定会注意到该脚本在子菜单项上运行两次。
这是因为该事件正在向其父项冒泡（ 第4节 a ）。
但这没什么大不了的。
You will certainly notice that the script runs twice on the sub-menu items.
That is because the event is "bublling" to its parent (the "Section 4" a).
But this is no big deal.
如果你试图阻止这种冒泡效果，你将打破菜单上的Bootstrap动作。
所以只需删除或注释掉所有 console.log（）在您的最后一页。
;）
If you try to stop this "bubbling" effect, you'll break the Bootstrap action on the menu.
So just remove or comment out all console.log() on your final page.
;)
这是脚本
这是 CodePen ，你可以玩（并看看我是如何工作的）。
Here is the script
And here is a CodePen, which you can play with (and see how I made it working).
console.clear()
console.log("READY!");
$(".navbar-nav li").on('click','a', function(event){
event.preventDefault();
// Which link was clicked?
console.log($(this).attr("href"));
// Section 1 case:
if( $(this).attr("href")=="#section1" ){
$("body").scrollTop(0);
console.log("Window simply has to scroll to position: 0");
}
// Section 4 case (Or any link which triggers a sub-menu)
if(typeof($(this).attr("href"))=="undefined"){
console.log("This link shall NOT trigger a scroll.");
}
// All the other cases.
if(typeof($(this).attr("href"))!="undefined" && $(this).attr("href")!="#section1"){
var o = $( $(this).attr("href") ).offset();
var sT = o.top - $(".navbar").outerHeight(true);
window.scrollTo(0,sT);
console.log("Section offset is: "+o.top);
console.log("Nav bar height is: "+$(".navbar").outerHeight(true));
console.log("Window has to scroll to position: "+sT);
}
// Just an empty console line for clarity.
console.log("");
});
这篇关于Bootstrap Navbar（以及顶部栏）锚标签导航导航栏后面的内容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！
