How To Change Text Box Content On Hover

问题:

I am having trouble trying to figure out how I can make a text box change content depending on what link is being hovered over. I can get it to work with which ever one is closest to the div but the other links seem to have no effect. I do not however want to have text being inserted in between the links nor do I want to create several text boxes. My main goal is to have the links always in the same place and when you hover over them a text box underneath will display the correct content.

Here is some code and a JSFiddle I threw together to help better illustrate my question: JSFiddle

HTML:

<a class="one" href="#">one</a>
<a class="two" href="#">two</a>
<a class="three" href="#">three</a>

<div class="element">hello</div>

CSS:

.element {
     display: none;
}

a:hover + .element {
     display: block;
}

回答1:

You need the follwing HTML mark-up:

<a href="#" class="a-1">one</a>
<a href="#"class="a-2">two</a>
<a href="#"class="a-3">three</a>

<div class="element-1">hello one</div>
<div class="element-2">hello two</div>
<div class="element-3">hello three</div>

and then apply the following CSS:

.element-1, .element-2, .element-3{
     display: none;
}
.a-1:hover  ~ .element-1 {
     display: block;
}
.a-2:hover  ~ .element-2{
     display: block;
}
.a-3:hover  ~ .element-3 {
     display: block;
}

See demo: http://jsfiddle.net/audetwebdesign/p7WUu/

The CSS is slightly repetitive but it works and no JavaScript required.

The sibling combinator (~) is needed to pick out sibling elements, see reference.

Reference: http://www.w3.org/TR/selectors/#sibling-combinators

回答2:

<div class="element special">hello</div> Use ~ instead of +

a:hover ~ .element.special { display: block; }

~ sibling combinator is similar to X + Y, however, it's less strict. While an adjacent selector (X + Y) will only select the first element that is immediately preceded by the former selector, ~ is more generalized.

回答3:

Read more about the content property here: http://www.w3schools.com/CSSref/pr_gen_content.asp As i read it, you can not use it with hover. It also only manipulates content of the current htmlelement.

With jQuery you can solve this. See http://jsfiddle.net/fhD3A/

$("a").hover(function() { $('.element').html('art'); });