我想要做的是:当达到一定量的页面幻灯片时,使网站的顶部栏向下切换。 I.E.,当用户向下滑动328px时,顶部栏杆向下滑动并保持固定在顶部。'高度:切换'JQuery的'动画'使Div继续切换
问题是,当用户达到328px滑下时,顶栏div开始切换上下,它不停止!只有当我将页面滑块移回顶部时它才会停止。
如何在达到328像素时将其切换下来,并在达到328像素以下时切换到底?
这是我的代码:
<script type="text/javascript">
$(document).ready(function() {
$(window).scroll(function() {
if ($(window).scrollTop() > 328) {
$("#header-fixed").css({"display": "block"});
$("#header-fixed").animate({"height": "toggle"});
}
if ($(window).scrollTop() <=328) {
$("#header-fixed").css({"display": "none"});
$("#header-fixed").animate({"height": "toggle"});
}
});
});
</script>
<div id="header-fixed">
<a href="index.html"> <img id = "logo" src = "img/logo-new.png"/> </a>
<div id = "menu-links-div">
<ul id = "ul-links">
<a href = "index.html"> <li class = "menu-links"> Home </li> </a>
<a href = "media.html"> <li class = "menu-links"> Media </li> </a>
<a href = "/"> <li class = "menu-links"> Sobre </li> </a>
<a href = "/"> <li class = "menu-links"> Contatos </li> </a>
</ul>
</div>
</div>
CSS:
#header-fixed {
position: fixed;
width: 100%;
top: 0px;
display: none;
height: 100px;
background: #1e5799; /* Old browsers */
background: -moz-linear-gradient(-45deg, #1e5799 0%, #7db9e8 60%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right bottom, color-stop(0%,#1e5799), color-stop(60%,#7db9e8)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(-45deg, #1e5799 0%,#7db9e8 60%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(-45deg, #1e5799 0%,#7db9e8 60%); /* Opera 11.10+ */
background: -ms-linear-gradient(-45deg, #1e5799 0%,#7db9e8 60%); /* IE10+ */
background: linear-gradient(135deg, #1e5799 0%,#7db9e8 60%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#1e5799', endColorstr='#7db9e8',GradientType=1); /* IE6-9 fallback on horizontal gradient
}