菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>菜鸟教程(runoob.com)</title> 
<style type="text/css">
#ex1{
	border: thin dotted #FF0000;
}
</style>
<script>
function displayResult(){
	document.getElementById("ex1").style.borderRight="thick solid #0000FF";
}
</script>
</head>
<body>

<div id="ex1">这是一些文本。</div>
<br>
<button type="button" onclick="displayResult()">修改右边框</button>

</body>
</html>
              