Twitter bootstrap 3 如何在引导中更改卷轴上的品牌形象?
我已经设法使图像改变,当我滚动它,但它的定位是完全错误的,走出导航栏。我希望图像在用户向下滚动时改变颜色,但这样将图像放在CSS中会导致错误。有什么好办法吗 CSS: HTML:Twitter bootstrap 3 如何在引导中更改卷轴上的品牌形象?,twitter-bootstrap-3,Twitter Bootstrap 3,我已经设法使图像改变,当我滚动它,但它的定位是完全错误的,走出导航栏。我希望图像在用户向下滚动时改变颜色,但这样将图像放在CSS中会导致错误。有什么好办法吗 CSS: HTML: #fh5co-header.navbar-fixed-top .navbar-brand { background: url(../images/loc.png); color: #96281B; <nav class="navbar navbar-de
#fh5co-header.navbar-fixed-top .navbar-brand {
background: url(../images/loc.png);
color: #96281B;
<nav class="navbar navbar-default">
<div class="navbar-header">
<!-- Mobile Toggle Menu Button -->
<a href="#" class="js-fh5co-nav-toggle fh5co-nav-toggle" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"><i></i></a>
<a class="navbar-brand" href="index.html"></a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li class="active"><a href="#" data-nav-section="home"><span>Home</span></a></li>
<li><a href="#" data-nav-section="work"><span>Menus</span></a></li>
<li><a href="#" data-nav-section="testimonials"><span>Testimonials</span></a></li>
<li><a href="#" data-nav-section="services"><span>Services</span></a></li>
<li><a href="#" data-nav-section="about"><span>About</span></a></li>
<li><a href="#" data-nav-section="contact"><span>Contact</span></a></li>
<li><a href="#"><i class="icon-facebook"></i></a></li>
<li><a href="#"><i class="icon-twitter"></i></a></li>
</ul>
<ul class="social social-circle">
</ul>
</div>
</nav>
#fh5co-header.navbar-fixed-top.navbar品牌{
背景:url(../images/loc.png);
颜色:#96281B;
JS
var windowScroll=function(){
var lastScrollTop=0;
$(窗口)。滚动(功能(事件){
变量头=$(“#fh5co头”),
scrlTop=$(this.scrollTop();
如果(scrlTop>500&&scrlTop尝试这样的事情
创建要在其中切换的类,可以在其中设置背景图像
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >= 80) {
$(".navy").addClass("scrolling");
$(".navbar-brand").addClass("navscroll");
} else {
$(".navy").removeClass("scrolling");
$(".navbar-brand").removeClass("navscroll");
}
});
CSS:
.drop.menuscroll{
边际上限:0px;
过渡:0.8s
}
.menu.lines滚动{
边缘顶部:8px;
过渡:0.8s;
}
.navy.scrolling{
过渡:0.8s;
高度:50px;
边际上限:0px;
}
.navbar品牌img.navscroll{
利润上限:-10px;
宽度:63px;
过渡:0.8s;
}
var windowScroll = function() {
var lastScrollTop = 0;
$(window).scroll(function(event){
var header = $('#fh5co-header'),
scrlTop = $(this).scrollTop();
if ( scrlTop > 500 && scrlTop <= 2000 ) {
header.addClass('navbar-fixed-top fh5co-animated slideInDown');
} else if ( scrlTop <= 500) {
if ( header.hasClass('navbar-fixed-top') ) {
header.addClass('navbar-fixed-top fh5co-animated slideOutUp');
setTimeout(function(){
header.removeClass('navbar-fixed-top fh5co-animated slideInDown slideOutUp');
}, 100 );
}
}
});
};
$(window).scroll(function() {
var scroll = $(window).scrollTop();
if (scroll >= 80) {
$(".navy").addClass("scrolling");
$(".navbar-brand").addClass("navscroll");
} else {
$(".navy").removeClass("scrolling");
$(".navbar-brand").removeClass("navscroll");
}
});