感谢您的支持，我会继续努力的!
打开微信扫一扫，即可进行扫码打赏哦
点我查看本站打赏源码！
Powered by RUNCODEX.COM，学的不仅是技术，更是梦想！！！
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>文档标题</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<div id="content">
<input tabIndex="1">
<input tabIndex="2">
<select tabIndex="3">
<option>select menu</option>
</select>
<div tabIndex="4">
a div
</div>
</body>
</html>
xxxxxxxxxx
$( "#content" ).delegate( "*", "focus blur", function( event ) {
var elem = $( this );
setTimeout(function() {
elem.toggleClass( "focused", elem.is( ":focus" ) );
}, 0);
});
.focused {
background: #abcdef;
}
