<!DOCTYPE html>
<html lang="en">
<head>
<style type="text/css">
.box{
width: 500px;
height: 500px;
border: 1px solid black;
margin: auto;
}
.header{
width: 100%;
height: 50px;
border-bottom: 1px solid black;
margin: auto;
text-align: center;
}
.header button{
width: 100px;
height:30px;
margin-top: 10px;
background-color: coral;
color: white;
font-size: 12px;
}
.header button:hover{
font-size: 16px;
background-color: lightskyblue;
cursor: pointer;
}
.footer{
width: 100%;
height: 450px;
overflow: hidden;
}
.footer .img{
width: 100%;
height: 350px;
text-align: center;
padding: 10px 0;
border-bottom: 1px solid black;
}
.footer .img img{
width: 95%;
height: 100%;
}
.footer .info{
width: 100%;
height: 80px;
text-align: center;
}
.content{
text-align: left;
width: 100%;
float: right;
}
</style>
<meta charset="UTF-8">
<title>雪橇三傻</title>
</head>
<body>
<div class="box">
<div class="header">
<button onclick="changePic(this)">哈士奇</button>
<button onclick="changePic(this)">萨摩耶</button>
<button onclick="changePic(this)">阿拉斯加</button>
</div>
<div class="footer">
<div class="img">
<img id="img" src="images/placeholder.jpeg" alt="">
</div>
<div class="info">
<span class="content" id="content"></span>
</div>
</div>
</div>
</body>
<script type="text/javascript">
function changePic(obj) {
var imageUrl = "images/placeholder.jpeg";
var info = "";
switch(obj.innerHTML){
case '哈士奇':
imageUrl = "images/hsq.jpg";
info="西伯利亚雪橇犬是原始的古老犬种,在西伯利亚东北部、格陵兰南部生活。哈士奇名字的由来,是源自其独特的嘶哑声";
break;
case '萨摩耶':
imageUrl = "images/smy.jpg";
info="萨摩耶犬(英文:Samoyed),别称萨摩耶,原是西伯利亚的原住民萨摩耶族培育出的犬种,一岁前调皮、灵动。";
break;
case '阿拉斯加':
imageUrl = "images/alsj.jpg";
info="阿拉斯加雪橇犬也叫阿拉斯加犬,它的名字取自爱斯基摩人的伊努伊特族的一个叫做马拉缪特的部落。这个部落生活在阿拉斯加西部一个叫做科策布(Kotzebue)的岸边。";
break;
}
var img = document.getElementById("img");
img.src = imageUrl;
var content = document.getElementById("content");
content.innerHTML = info;
var name = document.getElementById("name");
name.innerHTML = obj.innerHTML;
}
</script>
</html>
效果图