怎样让div长宽和随图片长宽改变而改变
<body style="background:#333">
<div id="box">
<img id="img1" src="<gtl:url/>/resources/images/21.jpg" onload="this.width=this.offsetWidth>500?500:this.offsetWidth;"/>
<img id="img2" src="<gtl:url/>/resources/images/21.jpg" onload="this.width=this.offsetWidth>500?500:this.offsetWidth;"/>
<div id="main">
<div id="left-up" class="minDiv left-up"></div>
<div id="up" class="minDiv up"></div>
<div id="right-up" class="minDiv right-up"></div>
<div id="right-down" class="minDiv right-down"></div>
<div id="left-down" class="minDiv left-down"></div>
<div id="left" class="minDiv left"></div>
<div id="right" class="minDiv right"></div>
<div id="down" class="minDiv down"></div>
</div>
</div>
<div id="preview">
<img id="img3" class="img3" src="<gtl:url/>/resources/images/21.jpg" onload="this.width=this.offsetWidth>500?500:this.offsetWidth;"/>
</div>
<script type="text/javascript">
var boxwidth = document.getElementById('box').offsetWidth;
var boxheight = document.getElementById('box').offsetHeight;
alert(boxwidth);
var img1width = document.getElementById("img1").offsetWidth;
var img1height = document.getElementById("img1").offsetHeight;
if(img1width>500){
boxwidth = 500+"px";
// alert("jmumwfhqjfri:"+pathwidth);
boxheight=(500/img1width)*img1height;
}else{
boxwidth=img1width;
boxheight=img1height;
}
</script>
</body>
请问大神，我的div长和宽为什么改变不了吶？求解答，谢谢
已过期3回答
-
echo_kinchao
你不给他宽度就会根据内容撑开来 -
已过期
已解决，谢谢
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