如何在使用jQuery悬停在div上时显示覆盖div? [英] How to show an overlay div when hover on a div with jQuery?
问题描述
我想在IBM网站上展示一个覆盖div的顶部div,类似于这种效果: http://www.ibm.com/us/en/
请查看页脚附近的3个框。
我创建了一个工作示例。基本上你需要用一个可见和不可见的容器创建3个div,添加 hover 事件处理程序并在该处理程序中切换工具提示的可见性。
HTML:
< div class =parents>
< div class =box type-1>方块1< / div>
< div class =tooltip type-1> tooltip 1< / div>
< / div>
< div class =parents>
< div class =box type-2>方框2< / div>
< div class =tooltip type-2> tooltip 2< / div>
< / div>
< div class =parents>
< div class =box type-3>方块3< / div>
< div class =tooltip type-3> tooltip 3< / div>
< / div>
CSS:
.parents
{
float:left;
margin:5px;
}
.box,
.tooltip
{
width:80px;
height:30px;
line-height:30px;
背景颜色:#666;
颜色:#fff;
border:1px solid#222;
text-align:center;
}
.tooltip
{
display:none;
位置:绝对;
top:50px;
jQuery代码:
<
$ b $(
$ add $ h
$($) '.box')。hover
(
function()
{
//找到触发方块父级,它是tooltip child
$(this).parent ().children('。tooltip')。animate
(
{
opacity:toggle,// toggle opacity
}
);
}
);
}
);
I want to show an overlay div sitting on top of the hovered div similar to this effect on IBM website: http://www.ibm.com/us/en/
Please look at the 3 boxes near the footer. Hover on the box "Let's build a smarter planet" to view the effect.
I've created a working example. Basically you need to create 3 divs with a visible and the invisible containers, add hover event handler and toggle the tooltip's visibility in that handler.
HTML:
<div class="parents">
<div class="box type-1">box 1</div>
<div class="tooltip type-1">tooltip 1</div>
</div>
<div class="parents">
<div class="box type-2">box 2</div>
<div class="tooltip type-2">tooltip 2</div>
</div>
<div class="parents">
<div class="box type-3">box 3</div>
<div class="tooltip type-3">tooltip 3</div>
</div>
CSS:
.parents
{
float: left;
margin: 5px;
}
.box,
.tooltip
{
width: 80px;
height: 30px;
line-height: 30px;
background-color: #666;
color: #fff;
border: 1px solid #222;
text-align: center;
}
.tooltip
{
display: none;
position: absolute;
top: 50px;
}
jQuery code:
$(document).ready
(
function ()
{
// add hover event handler
$('.box').hover
(
function ()
{
// find the triggering box parent, and it's tooltip child
$(this).parent().children('.tooltip').animate
(
{
opacity: "toggle", // toggle opacity
}
);
}
);
}
);
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