<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript" >
$(document).ready(function() {
search_focus();
});
function search_focus() {
$(".search-input").focus(function() {
$(this).css('border-bottom', '1px solid red');
}).blur(function() {
$(this).css('border-bottom', '1px solid #c6ccc');
});
}
</script>
<style>
.search-area {margin: 5px 20px 0; border-bottom: 1px solid #C6CCCC; text-align: left;}
.search-input {width: 270px; height: 40px; outline: none; font-size: 14px; color:#747878; background-color: transparent;}
</style>
</head>
<body>
<div class="search-area"><input type="text" class="search-input"></div>
</body>
</html>
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