当手风琴激活时，箭头指向下方

Question

我正在使用Zebra手风琴。不是那里最好的，但它与jQuery 1.5.2完全兼容，显然已经过时了。

无论如何，我想的箭头指向下当上了手风琴用户点击，很喜欢这样的：

http://jqueryui.com/accordion/

这是目前我的页面，现在，如果你去炼金术在详细标签，你会发现这两个手风琴有：

http://www.planet.nu/dev/test-2/product-page.html

这是斑马手风琴的CSS：

dl.Zebra_Accordion { width: 740px; font-size: 14px; } 
dl.Zebra_Accordion dt { background: #878787; color: #FFF; font-weight: bold; padding: 8px; } 
dl.Zebra_Accordion dt:hover { background: #0095da; } 
dl.Zebra_Accordion dd { background: #EFEFEF; padding-top: 5px; padding-bottom: 305px; margin: 0; } 
dl.Zebra_Accordion dt.Zebra_Accordion_Expanded { background: #0095da; } 

这是HTML：

<dl class="Zebra_Accordion"> 
      <dt><p class="accordion-header">Managed Services</p></dt> 
      <dd> 
       <p><span>Alchemy Social’s Managed Service solution works with businesses of all sizes — from brand new start-ups to established multinationals — ensuring that they connect with and engage the right social audiences.</span></p> 
       <p>Our teams combine the perfect blend of skills, from traditional digital display through search to creative design. With offices around the world, we manage campaigns and support our clients whenever and wherever they need us:</p> 
        <ul> 
         <li class="alchemy-product-list">Full campaign management, from goal setting/strategy through to delivery and reporting</li> 
         <li class="alchemy-product-list">Targeting and segmentation planning</li> 
         <li class="alchemy-product-list">Custom built creative generation on demand (image and copy)</li> 
         <li class="alchemy-product-list">Daily optimisation</li> 
         <li class="alchemy-product-list">Regular reporting</li> 
         <li class="alchemy-product-list">Campaign review</li> 
         <li class="alchemy-product-list">Access to Experian’s unique and proprietary data assets to improve campaigns</li> 
        </ul> 
      </dd> 
      <dt>Licensed Services<img src="img/arrow-white.png" class="white-arrow"></dt> 
      <dd> 
       <p><span>As the social space evolves at tremendous speed, even the most experienced in-house teams can need support to stay ahead of the curve.</span></p> 
       <p>Experian’s Alchemy Social Licensed solutions offer flexible, on-demand services to meet every need. Our client services team is amongst the most experienced in the industry, offering scalable support to your social strategies and campaigns.</p> 
       <p><span>Alchemy SaaS</span></p> 
       <p>Licensing the Alchemy Social Platform brings access to the full range of features of the Facebook ads manager platform, including:</p> 
       <ul> 
        <li class="alchemy-product-list">Guidance on how to create, manage, report on and optimise campaigns</li> 
        <li class="alchemy-product-list">Access to regular webinars on new releases, features and best practices</li> 
        <li class="alchemy-product-list">Dedicated account management support and consultative advice</li> 
        <li class="alchemy-product-list">Create campaign rules for real-time cost per acquisition (CPA) optimisation</li> 
        <li class="alchemy-product-list">Effectively refine activity at various points of the campaign cycle</li> 
        <li class="alchemy-product-list">Control ad spend at segment level by location or target group</li> 
        <li class="alchemy-product-list">Analyse conversion data and integrate with other analytical tools</li> 
        <li class="alchemy-product-list">View real-time reporting to understand CPA and conversion rates at ad level</li> 
        <li class="alchemy-product-list">Integrate campaign results with tools like Google Analytics and Adobe Omniture</li> 
       </ul> 
      </dd> 
     </dl> 

我还将包括一个位主要CSS代码为好，这是从炼金术 - 产品世界style.css中：

.accordion-header:after{ 
    content: url(../img/arrow-white.png); 
    padding-left: 10px; 
} 

dl.Zebra_Accordion dt .accordion-header{ 
    color: #FFF !important; 
    padding: 0 !important; 
} 

Answer 1

也许你可以添加如下规则：

.Zebra_Accordion_Expanded .white-arrow { 
    transform: rotate(90deg); // You should prefix this accordingly to your needs. 
} 

支持CSS3转换is pretty good at the moment，但如果你需要支持旧的浏览器，我会做它就像在jQueryUI的手风琴。他们有一个箭头图标<span>，然后根据图标的状态更改图标的背景。

这将是这个样子：

HTML：

<dt class="Zebra_Accordion_Expanded"> 
    Licensed Services 
    <span class="arrow-icon"></span> 
</dt> 

CSS：

.arrow-icon { 
    display: inline-block; 
    width: 12px; 
    height: 12px; 
    background: url(../img/arrow-white.png) center no-repeat; 
} 

.Zebra_Accordion_Expanded .arrow icon { 
    background-image: url(../img/arrow-white-down.png); 
} 

这应该工作，但它只是一个例子。请记住，使用2个图像会创建一个额外的http请求，在这种情况下使用CSS Sprites将是一个更优雅的解决方案。

希望它对你有所帮助。

- FF

Answer 2

确定 - 这里是证明我的做法小提琴：

http://jsfiddle.net/afpgpngo/

改变你的CSS回应称被斑马设置Zebra_AccordionExpanded风格。

dl.Zebra_Accordion dt.Zebra_Accordion_Expanded .accordion-header:after{ 
    content: "put link to downward facing arrow"; 
    padding-left: 10px; 
} 

dl.Zebra_Accordion dt .accordion-header:after{ 
    content: url(http://www.planet.nu/dev/test-2/img/arrow-white.png); 
    padding-left: 10px; 
} 

，并且确保你改变你的HTML是一致的：

<dt><p class="accordion-header">Managed Services</p></dt> 

和

<dt><p class="accordion-header">Licensed Services</p></dt> 

（css插入手风琴标题后的类）