简单教程
提交运行
代码编辑器:
<!DOCTYPE html> <meta charset="utf-8"> <link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/> <script src="https://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script> <script> $(document).ready(function(){ $("input").focus(function(){ $("span").css("display","inline").fadeOut(2000); }); }); </script> <style> span { display:none; } </style> <input> <span>请输入你的电话号码?</span> <p>点击输入框获取焦点</p> <footer>简单教程,简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>
运行结果: