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【每日一学】会跳动的输入框

作者:web1762016.12.22来源:Web前端之家浏览:15054评论:0
关键词:input动画

做了一个input输入框效果,默认效果是:

1.png

点击focus后效果是:

2.png

o(∩_∩)o 哈哈,是不是觉得很不错吧,我们看下代码吧。

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>input</title>
</head>
<body>
    <style>
        *{margin:0;padding:0;}
        body{font-size:14px;font-family:"微软雅黑";color:#333;}
        .wrap{
            width:640px;
            height:320px;
            margin:50px auto;
            border:1px solid #eee;
        }
        .wrap .wrap_Iten{
            position:relative;
            margin:20px auto;
        }
        .item_tip {
            background-color: #fff;
            color: #999;
            font-size: 12px;
            left: 12px;
            padding: 0 3px;
            position: absolute;
            top: 10px;
            transition: all .2s linear 0s;
        }
        .form_input {
            border: 1px solid #dcdcdc;
            border-radius: 5px;
            font-size: 12px;
            padding: 9px 10px;
            transition: border-color .15s ease-in-out 0s;
            width: 278px;
            outline:none;
        }
        .item_tip_focus{
            color:#5188a6;
            font-size:12px;
            top:-8px;
        }
        .form_input-focus{
            border-color:#5188a6;
            outline:0 auto;
        }
    </style>
    <div>
        <form action="">
            <div>
                <div>
                    <div>用户名/邮箱</div>
                    <input type="text" tabindex="1" value="" name="username"  autocomplete="off" onblur="blurInputLoginBox($(this))" onfocus="focusInputLoginBox($(this))">
                </div>
            </div>
        </form>
    </div>
    <script type="text/javascript" src="http://libs.baidu.com/jquery/1.11.1/jquery.min.js"></script>
    <script>
        function focusInputLoginBox(obj) {
            obj.addClass("form_input-focus");
            obj.prev(".item_tip").addClass("item_tip_focus")
        }
        function blurInputLoginBox(obj) {
            var v = obj.val();
            if (v == "") {
                obj.removeClass("form_input-focus");
                obj.prev(".item_tip").removeClass("item_tip_focus")
            } else {
                obj.addClass("form_input-focus");
                obj.prev(".item_tip").addClass("item_tip_focus")
            }
        }
    </script>
</body>
</html>

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