js实现css标记显示
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
#show{
width:100px;
height: 50px;
margin:0 auto;
background:#2c2c2c;
color:#fff;
text-align:center;
}
</style>
<title>进制转换</title>
<script type="text/javascript" >
document.write("<div id='show'>");
var date=parseInt(prompt("请输入十进制数据",0));
var base=parseInt(prompt("请输入基数(2,8,16)",2));
var result;
switch(base){
case 2:
case 8:
case 16: result = date.toString(base);break;
default: result = "<span style='color:red'>非法</span>"
}
document.write(result);
document.write("</div>");
</script>
</head>
<body>
</body>
</html>