我想创建一个标签,当某人悬停在该标签下方时,新的ul项目应显示淡入和淡出效果。直到现在我已经使用了mouseenter,新的diplay项目应该留在那里选择其他选项。
HTML
<ul class="sector-nav">
<li><a href="#" class="residential-main">Residential</a></li>
<li><a href="#"class="commercial-main">Commerical</a></li>
<li><a href="#">Private</a></li>
</ul>
<ul class="res-pro residential-pro">
<li><a href="#">rProject 1</a></li>
<li><a href="#">rProject 2</a></li>
<li><a href="#">rProject 3</a></li>
</ul>
<ul class="com-pro commercial-pro">
<li><a href="#">cProject 1</a></li>
<li><a href="#">cProject 2</a></li>
<li><a href="#">cProject 3</a></li>
</ul>
JS
$(document).ready(function() { $('.residential-main').mouseenter(function() { $('.residential-pro').show(); }); $('.residential-main').mouseleave(function () { $('.residential-pro').hide(); }); });
$(document).ready(function() { $('.commercial-main').mouseenter(function() { $('.commercial-pro').show(); }); $('.commercial-main').mouseleave(function () { $('.commercial-pro').hide(); }); });
参见 jsFiddle
答案 0 :(得分:3)
您不需要使用javascript,因为您只能使用CSS :hover
psuedo选择器来执行此操作。
首先,您需要将相关的ul
元素设为其父级li
的子级:
<ul class="sector-nav">
<li>
<a href="#" class="residential-main">Residential</a>
<ul class="res-pro residential-pro">
<li><a href="#">rProject 1</a></li>
<li><a href="#">rProject 2</a></li>
<li><a href="#">rProject 3</a></li>
</ul>
</li>
<li>
<a href="#" class="commercial-main">Commerical</a>
<ul class="com-pro commercial-pro">
<li><a href="#">cProject 1</a></li>
<li><a href="#">cProject 2</a></li>
<li><a href="#">cProject 3</a></li>
</ul>
</li>
<li><a href="#">Private</a></li>
</ul>
然后修改以下选择器以隐藏/显示悬停时的相关ul
元素:
.sector-nav > li {
display: inline;
padding-right: 20px;
border-right-width: 1px;
border-right-style: solid;
border-right-color: #999;
padding-left: 20px;
position: relative;
}
.sector-nav li > ul {
display: none;
position: absolute;
}
.sector-nav > li:hover > ul {
display: block;
}
答案 1 :(得分:1)
更好的方法是使用CSS。这是fiddle a和fadeIn动画示例。
.fadeIn {
border: 1px solid #48484A;
font-size: 18px;
opacity:0;
-webkit-transition : all 2s ease-out;
-moz-transition : all 2s ease-out;
-o-transition : all 2s ease-out;
transition : all 2s ease-out;
}
.thisText:hover .fadeIn {
opacity: 1;
}
但是既然你正在使用JQuery,你也可以使用他的fadein函数来提供动画。
以下是JQuery文档中的一个示例:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>fadeIn demo</title>
<style>
p {
position: relative;
width: 400px;
height: 90px;
}
div {
position: absolute;
width: 400px;
height: 65px;
font-size: 36px;
text-align: center;
color: yellow;
background: red;
padding-top: 25px;
top: 0;
left: 0;
display: none;
}
span {
display: none;
}
</style>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
</head>
<body>
<p>
Let it be known that the party of the first part
and the party of the second part are henceforth
and hereto directed to assess the allegations
for factual correctness... (<a href="#">click!</a>)
<div><span>CENSORED!</span></div>
</p>
<script>
$( "a" ).click(function() {
$( "div" ).fadeIn( 3000, function() {
$( "span" ).fadeIn( 100 );
});
return false;
});
</script>
</body>
</html>
有关更多示例(JQuery doc)
,请参阅doc答案 2 :(得分:0)
如果你想使用js,你的解决方案非常接近。 只需替换jquery show,分别用fadeIn和fadeOut隐藏,最初隐藏css中的元素。但是,您还需要修改您的html,以便让孩子在他们的父母下面。
<强> HTML 强>
<ul class="sector-nav">
<li class="residential-main"><a href="#">Residential</a><ul class="res-pro residential-pro">
<li><a href="#">rProject 1</a>
</li>
<li><a href="#">rProject 2</a>
</li>
<li><a href="#">rProject 3</a>
</li>
</ul>
</li>
<li class="commercial-main"><a href="#" >Commerical</a>
<ul class="com-pro commercial-pro">
<li><a href="#">cProject 1</a>
</li>
<li><a href="#">cProject 2</a>
</li>
<li><a href="#">cProject 3</a>
</li>
</ul>
</li>
<li><a href="#">Private</a>
</li>
</ul>
<强> CSS 强>
.sector-nav li {
display: inline;
}
.residential-pro , .commercial-pro{
display:none;
position:absolute;
padding:0;
}
.residential-pro li, .commercial-pro li{
display:block;
}
<强> JS 强>
$(document).ready(function () {
$('.residential-main,.residential-pro').mouseenter(function () {
$('.residential-pro').stop(false,true).offset({left:$('.residential-main').offset().left}).fadeIn();
});
$('.residential-main').mouseleave(function () {
$('.residential-pro').stop(false,true).fadeOut();
});
});
$(document).ready(function () {
$('.commercial-main,.commercial-pro').mouseenter(function () {
$('.commercial-pro').stop(false,true).offset({left:$('.commercial-main').offset().left}).fadeIn();
});
$('.commercial-main').mouseleave(function () {
$('.commercial-pro').stop(false,true).fadeOut();
});
});