js文本框聚焦边框变色

时间：2024-02-15 14:05:54

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
.fun {
 margin: 0 auto;
 width: 1000px;
 overflow: hidden;
 box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
 border: solid 1px #ccc;
 font-family: Microsoft YaHei;
 overflow: hidden;
}

.inputText {
 border: solid 1px #ccc;
 height: 40px;
 width: 200px;
 line-height: 40px/9;
 padding: 0 2px;
 box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.1);
 margin: 10px 0;
 outline: none;
 font-family: arial;
 font-weight: 700;
 text-indent: 5px;
 color: #1C1C1C;
 display: inline-block;
}

.inputFocus {
 border: solid 1px #1398FF;
 box-shadow: 0 0 5px rgba(0, 192, 255, 0.4);
}

.text {
 padding: 15px 0 15px 75px;
}

h1 {
 text-align: center;
 padding: 10px 0;
 margin: 0;
 background: -webkit-linear-gradient(#fcfcfc, #f9f9f9) repeat;
 background: -moz-linear-gradient(#fcfcfc, #f9f9f9) repeat;
 border-bottom: solid 1px #ccc;
 font-weight: 400;
 text-shadow: 1px 1px 3px #fff;
}
</style>

<script src="resources/js/jquery-1.7.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
 // JavaScript Document
 $(document).ready(function() {
  function input() {
   //each遍历文本框
   $(".inputText").each(function() {
    // 保存当前文本框的值
    var $val = this.value;
    $(this).focus(function() {
     // 获得焦点时，如果值为默认值，则清空文本框的值
     if (this.value == $val) {
      this.value = "";
      // alert(this.className);
      this.className = "inputText inputFocus";
     }
    });

    $(this).blur(function() {
     // 失去焦点时，如果值为空，则重新加上文本框默认值
     if (this.value == "" || this.value == $val) {
      this.value = $val;
      this.className = "inputText";
     }
    });
   });
  }

  input();
 })
</script>
</head>

<body>
 <div class="fun">
  <h1>文本框聚焦清空默认值边框变色，离开焦点添加默认值</h1>
  <div class="text">
   <input type="text" class="inputText" value="1111" />
   <input type="text" class="inputText" value="2222" />
   <input type="text" class="inputText ss" value="82747" />
   <input type="text" class="inputText" value="094727" />
   <input type="text" class="inputText" value="249049" />
   <input type="text" class="inputText" value="333" />
   <input type="text" class="inputText" value="77777777" />
  </div>
 </div>
</body>
</html>