课程 \
图片展示特效
3-3 编程练习
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>图片展示--侧边显示详细信息</title>
<style>
div, ul, li, dl, dt, dd, img, a {
margin: 0;
padding: 0;
}
ul, li, dl, dt, dd {
list-style: none;
}
img {
border: 0;
width: 300px;
}
.demo {
margin: 0 auto;
overflow: hidden;
padding: 0 34px;
}
.orginImg li {
float: left;
margin-right: 5px;
position: relative;
margin-bottom:10px;
}
.orginImg li a {
display: block;
border: 2px solid #ccc;
}
.orginImg li div {
position: absolute;
top: 0;
left: 100%;
z-index: 22;
background: #ccc;
width: 305px;
height: 170px;
border: 2px solid #F00;
display: none;
}
.orginImg li div dl{
color:#fff;
font-weight:bold;
padding:10px;
}
.orginImg li div dl dt{
text-align:center;
}
.orginImg li div dl dd{
text-indent:2em;
}
</style>
</head>
<body>
<div class="demo">
<ul class="orginImg" id="orginImg" >
<li>
<a href="http://imooc.com"><img src="http://img1.sycdn.imooc.com//52fd84630001d22603000170.jpg" /></a>
<div>
<dl>
<dt>学会html5 绝对的屌丝逆袭</dt>
<dd>本课程由浅入深，逐步推进，以示例为主线，详细完整地介绍HTML5的新功能与新特征</dd>
</dl>
</div>
</li>
<li>
<a href="http://imooc.com"><img src="http://img1.sycdn.imooc.com//52fd848d00017baa03000170.jpg" /></a>
<div>
<dl>
<dt>圆角水晶按钮制作</dt>
<dd>网页中的圆角按钮和宽度自适应按钮就这么轻松制作</dd>
</dl>
</div>
</li>
<li>
<a href="http://imooc.com"><img src="http://img1.sycdn.imooc.com//52fd84b00001e9b803000169.jpg" /></a>
<div>
<dl>
<dt>导航条菜单的制作</dt>
<dd>30分钟教你轻松制作出各种形式的网站导航条菜单</dd>
</dl>
</div>
</li>
</ul>
</div>
<script type="text/javascript">
var lis = document.getElementById("orginImg").getElementsByTagName("li");
for(var i =0;i<lis.length;i++){
lis[i].onmouseover = showDetail;
lis[i].onmouseout = hideDetail;
}
var lastLi;
lastLi = lis[ ? ];
lastLi.getElementsByTagName("div")[0].style.left=' ? ';
lastLi.getElementsByTagName("div")[0] ? ;
function showDetail(){
this.getElementsByTagName("div")[0].style.display = 'block';
}
function hideDetail(){
this.getElementsByTagName("div")[0].style.display = 'none';
}
</script>
</body>
</html>
2019-04-20
查看完整代码
2-7 编程练习
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>图片展示显示详细说明和隐藏</title>
<meta charset='utf-8'/>
<style type="text/css">
body, ul, li, ol {
list-style: none;
padding: 0px;
margin: 0px;
font-size: 12px;
font-family: 微软雅黑;
}
img {
border: 0px;
}
.picList {
width: 100%;
float: left;
}
.picList .col {
width: 300px;
height: 200px;
position: relative;
overflow: hidden;
float: left;
margin: 10px 0 0 10px;
}
.picList .col img, .col a {
position: absolute;
top: 0px;
left: 0px;
}
.picList .col img {
width: 100%;
}
.picList .col a {
display: block;
width: 280px;
height: 180px;
/*设置初始值*/
background:#000;
color: white;
font-style: normal;
line-height: 25px;
padding: 10px;
opacity: 0.8;
text-decoration: none;
}
</style>
</head>
<body>
<div class='picList' id="picList">
<div class='col' id="pic1" >
<img src="1.jpg" />
<a href='#'>学会html5 绝对的屌丝逆袭<br/>
本课程由浅入深，逐步推进，以示例为主线，详细完整地介绍HTML5的新功能与新特征
</a>
</div>
<div class='col' id="pic2">
<img src="2.jpg" />
<a href='#'>圆角水晶按钮制作<br/>
网页中的圆角按钮和宽度自适应按钮就这么轻松制作！
</a>
</div>
<div class='col' id="pic3">
<img src="3.jpg" />
<a href='#'>导航条菜单的制作<br/>
30分钟教你轻松制作出各种形式的网站导航条菜单
</a>
</div>
</div>
<script type="text/javascript">
function imgDisplay(){
var Div = document.getElementById('picList').getElementsByTagName('div');
var divHeight = 160; //定义要改变值的大小
//for循环
function showImg(){
//显示
}
function hideImg(){
//隐藏
}
}
imgDisplay();
</script>
</body>
</html>
2019-04-20
查看完整代码