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我有一個位於頁面頂部的菜單。 div的背景是黑色的,有50%的不透明度。當你將鼠標懸停在列表上時,它會觸發一個下拉菜單。子菜單是由一個懸停功能,淡入它運行。我想擴大div的背景,當子菜單出現,使其下滑與子菜單,我知道我可以給子菜單背景,但我希望div的背景擴大,以便填充頁面,達到子菜單佔用的數量,但在離開懸停後返回。使用下拉列表框導航展開div和背景
這是我的子菜單懸停功能。我認爲可以添加一些東西來改變div的樣式。
$('.nav li, .subTopMenu li').hover(
// When mouse enters the .navigation element
function() {
//Fade in the navigation submenu
$('ul', this).fadeIn(); // fadeIn will show the sub cat menu
},
// When mouse leaves the .navigation element
function() {
//Fade out the navigation submenu
$('ul', this).fadeOut(); // fadeOut will hide the sub cat menu
}
);
div和list是html的樣子;
<div class="topMenu">
<a href="#"><img src="images/logo-small.png"></a>
<ul class="subTopMenu">
<li class="noHover"><a href="#">Link1</a>
<ul>
<li><a href="#" id="navclick" data-iclick="tAbout">ABOUT US</a></li>
<li><a href="#" id="navclick" data-iclick="tHistory" data-bgsrc="images/history.jpg">HISTORY</a></li>
<li><a href="#">OUR BOARD</a></li>
<li><a href="#">CONTRIBUTE</a></li>
</ul>
</li>
<li class="noHover"><a href="#">Link2</a>
<ul>
<li><a href="#">SHOP</a></li>
<li><a href="#">EAT</a></li>
<li><a href="#">DRINK</a></li>
<li><a href="#">JOIN</a></li>
</ul>
</li>
<li class="noHover"><a href="#">Link3</a>
<ul>
<li><a href="#">MUSIC</a></li>
<li><a href="#">ART</a></li>
<li><a href="#">FESTIVALS</a></li>
<li><a href="#">LECTURES</a></li>
</ul>
</li>
<li class="noHover"><a href="#">Link4</a>
<ul>
<li><a href="#">WHEN & WHERE</a></li>
<li><a href="#">REGISTER</a></li>
<li><a href="#">VOLUNTEER</a></li>
<li><a href="#">SPONSOR</a></li>
<li><a href="#">GALLERY</a></li>
</ul>
</li>
</ul>
</div>
div的樣式在css中;
.topMenu
{
display:none;
top:0px;
position:relative;
padding:10px;
background-color:rgba(0,0,0,0.5);
text-align:center;
}
.topMenu li
{
display:inline;
position:relative;
text-align:center;
}
我想是這樣的使用jQueryUI的效果來調整DIV,但它似乎並沒有削減它。格創造了高度,但它始終在兩個高度之間來回移動。
$('.noHover').mouseover(
function() {
//Increase the size of the topMenu div
$('.topMenu').animate({height: '200'},'slow');
});
$('.subTopMenu').mouseout(
function(){
$('.topMenu').animate({height: '90'},'slow');
});
$('.nav li, .subTopMenu li').hover(
// When mouse enters the .navigation element
function() {
//Fade in the navigation submenu
$('ul', this).fadeIn(); // fadeIn will show the sub cat menu
},
// When mouse leaves the .navigation element
function() {
//Fade out the navigation submenu
$('ul', this).fadeOut(); // fadeOut will hide the sub cat menu
}
);