Hiệu ứng accordion giúp một vùng liên kết được kích chuột vào có thể xếp lại trông giống như đàn accordion. Sử dụng hiệu ứng này với sự hỗ trợ của Mootools có thể tạo một thanh menu dọc khá ấn tượng.
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Trước tiên, bạn hãy đặt toàn bộ phần code bên dưới vào phần đầu của trang HTML, nằm giữa 2 thẻ <head>, </head>.
<script type="text/javascript" src="http://www.ryanscherf.net/demos/accordion/mootools.js"></script>
<style type="text/css">
#content {
width: 220px;
margin: 0 auto;
}
#wrap {
width: 232px;
overflow: hidden;
background: #fff url("http://www.ryanscherf.net/demos/accordion/images/wrapbg.gif") repeat-y top left;
}
h3 {
padding: 10px 0 11px 15px;
margin: 0;
font-size: 12px;
font-weight: normal;
color: #222;
background: #efefef;
cursor: pointer;
border-bottom: 1px solid #fff;
text-decoration: none;
}
h3.toggler a {
color: #666;
text-decoration: none;
}
h3.toggler a:hover {
color: black;
}
div.accordion {
background: #fff url("http://www.ryanscherf.net/demos/accordion/images/accordionbg.gif") repeat-x top left;
}
div.accordion ul {
list-style-type: none;
padding: 0;
margin: 0 0 5px 0;
}
div.accordion ul li {
padding: 6px 0;
}
div.accordion ul li a {
color: #666;
text-decoration: none;
display: block;
padding: 4px 0px 4px 20px;
font-size: 90%;
}
div.accordion ul li a span {
padding-bottom: 10px;
}
div.accordion ul li a img {
border: 0;
vertical-align: bottom;
margin-right: 15px;
}
div.accordion ul li a:hover span {
text-decoration: underline;
}
#top_round {
height: 10px;
font-size: 1px; /* ie whitespace */
}
#bottom_round {
height: 10px;
font-size: 1px; /* ie whitespace */
}
.top_dark {
background: url("http://www.ryanscherf.net/demos/accordion/images/top_dark.gif") no-repeat top left;
}
.top_light {
background: url("http://www.ryanscherf.net/demos/accordion/images/top_light.gif") no-repeat top left;
}
.bottom_dark {
background: url("http://www.ryanscherf.net/demos/accordion/images/bottom_dark.gif") no-repeat top left;
}
.bottom_light {
background: url("http://www.ryanscherf.net/demos/accordion/images/bottom_light.gif") no-repeat top left;
}
.first {
padding-top: 5px;
}
.last {
padding-bottom: 5px;
}
</style>
Thiết lập HTML như bên dưới để đặt vào phần thân của trang HTML, nằm giữa 2 thẻ <body>, </body>.
<div id="wrap">
<div id="top_round"></div>
<div id="content">
<h3 class="toggler first" style="padding-top:5px;"><a href="#section1" onfocus="this.blur();">Section Title 1</a></h3>
<div class="accordion">
<ul>
<li><a href="#" onfocus="this.blur();"><img src="/images/image1.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image2.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image3.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image4.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image5.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image6.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image7.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image8.png" alt="" /><span>Link to other content area</span></a></li>
</ul>
</div>
<h3 class="toggler"><a href="#section2" onfocus="this.blur();">Section Title 2</a></h3>
<div class="accordion">
<ul>
<li><a href="#" onfocus="this.blur();"><img src="/images/image9.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image10.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image11.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image12.png" alt="" /><span>Link to other content area</span></a></li>
</ul>
</div>
<h3 class="toggler"><a href="#section3" onfocus="this.blur();">Section Title 3</a></h3>
<div class="accordion">
<ul>
<li><a href="#" onfocus="this.blur();"><img src="/images/image13.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image14.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image15.png" alt="" /><span>Link to other content area</span></a></li>
</ul>
</div>
<h3 class="toggler"><a href="#section4" onfocus="this.blur();">Section Title 4</a></h3>
<div class="accordion">
<ul>
<li><a href="#" onfocus="this.blur();"><img src="/images/image16.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image17.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image18.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image19.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image20.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src=" /images/image21.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image22.png" alt="" /><span>Link to other content area</span></a></li>
<li><a href="#" onfocus="this.blur();"><img src="/images/image23.png" alt="" /><span>Link to other content area</span></a></li>
</ul>
</div>
<h3 class="toggler last"><a href="#section5" onfocus="this.blur();">Section Title 5</a></h3>
<div class="accordion"><!-- no content hack --></div>
</div>
<div id="bottom_round"></div>
</div>
</div>
Đặt đoạn code sau đây trước thẻ đóng </body>.
Chú ý ở Bước 2, bạn phải tùy chỉnh scr theo URL các file hình ảnh tương ứng của bạn.
Hiệu ứng này có thể áp dụng cho Blogger khá dễ dàng.
