<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title> jquery 提示语淡入</title> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" /> <link rel="stylesheet" type="text/css" href="" /> <style type="text/css"> .tishi-com{display:none;width:65px;height:20px;line-height:20px; background:#fff9c9; border:1px solid #c7bf93; color:#666; position:relative;left:230px;top:-22px;} </style> <script type="text/javascript" src="jquery-3.0.0.js"></script> </head> <body> <div style="500px;height:200px;border:1px solid #E5E5E5;margin:0 auto;"> <div style="height:50px;100%;"> <label class="user-label">用户名：</label> <input type="text" class="username" name="username"/> <div class="tishi-com"> <span class="tishi-font font-12"></span> </div> </div> <div style="height:50px;100%;"> <label class="user-label">手机号：</label> <input type="text" class="phone" name="phone"/> <div class="tishi-com"> <span class="tishi-font font-12"></span> </div> </div> <div> <input type="submit" class="fade" value="提交" /> </div> </div> <script type="text/javascript"> $(document).ready(function(){ $(".fade").click(function(){ var name=$.trim($(".username").val()); var phone=$.trim($(".phone").val()); if(name==""){ $('input[name=username]').siblings('.tishi-com').fadeIn(); $('input[name=username]').siblings('.tishi-com').find('.tishi-font').text('不能为空'); } if(phone==""){ $('input[name=phone]').siblings('.tishi-com').fadeIn(); $('input[name=phone]').siblings('.tishi-com').find('.tishi-font').text('不能为空'); } }); }); </script> </body> </html>
