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jQuery implementation of prompt fade-in effect example tutorial

小云云Original: 2018-01-12 11:28:061348browse

This article mainly introduces examples of using jquery to achieve the prompt fade-in effect, which has a good reference value. Let's take a look with the editor below, I hope it can help everyone.

Rendering:

Without further ado, please take a look at the code:

<!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>
 <p style="width:500px;height:200px;border:1px solid #E5E5E5;margin:0 auto;">
  <p style="height:50px;width:100%;">
   <label class="user-label">用户名：</label>
   <input type="text" class="username" name="username"/>
   <p class="tishi-com">
    <span class="tishi-font font-12"></span>
   </p>
  </p>
 <p style="height:50px;width:100%;">
  <label class="user-label">手机号：</label>
  <input type="text" class="phone" name="phone"/>
  <p class="tishi-com">
   <span class="tishi-font font-12"></span>
  </p> 
 </p>
  <p>
  <input type="submit" class="fade" value="提交" />
  </p>
 </p>
<script type="text/javascript">
 $(document).ready(function(){
  $(".fade").click(function(){
   var name=$.trim($(".username").val());
   var phone=$.trim($(".phone").val());
   if(name==""){
    $(&#39;input[name=username]&#39;).siblings(&#39;.tishi-com&#39;).fadeIn();
    $(&#39;input[name=username]&#39;).siblings(&#39;.tishi-com&#39;).find(&#39;.tishi-font&#39;).text(&#39;不能为空&#39;);
   }
   if(phone==""){
    $(&#39;input[name=phone]&#39;).siblings(&#39;.tishi-com&#39;).fadeIn();
    $(&#39;input[name=phone]&#39;).siblings(&#39;.tishi-com&#39;).find(&#39;.tishi-font&#39;).text(&#39;不能为空&#39;);
   }
  });
 });
</script>
</body>
</html>

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