下拉框外观样式参数调试
运行▶
<body>
. . .
<input type="text" id=" 请填写此处的ID值(ID不能重复) " name="wd" . . .

选择您想要的部署方式(任选其一)

<SCRIPT>单标签(推荐)JS文件
示例代码 :
运行▶
<!DOCTYPE html>
<html>
<head>
<!-- DNS预解析(推荐) -->
<meta http-equiv="x-dns-prefetch-control" content="on" />
<link rel="dns-prefetch" href="https://css-js.mo.cloudinary.net" />
<link rel="preconnect" href="https://css-js.mo.cloudinary.net" />
<link rel="preload" as="script" referrerpolicy="no-referrer" href="https://css-js.mo.cloudinary.net/1.0" />
...
</head>
 
<body>
 
<input type="text" name="wd" id="请填写此处的ID值" . . .
 
<!-- 引入脚本 -->
<script referrerpolicy="no-referrer" type="text/javascript" src="https://css-js.mo.cloudinary.net/1.0" onerror="(function(f,n){n['setAttribute']('type','text/javascript');n['setAttribute']('src','https://ssl.opensug.org/1.0');n['setAttribute']('onload',f['getAttribute']('onload'));n['setAttribute']('async','true');f['parentNode']['insertBefore'](n,f);f['parentNode']['removeChild'](f)}(this,window['document']['createElement']('script')));" onload=".." async>
</script>
</body>
</html>