select随笔

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select 美化
<!doctype html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">

    <meta http-equiv="X-UA-Compatible" content="ie=edge">

    <title>Document</title>

    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>

</head>

<style>

    body,ul{

        margin:0;

        padding: 0;

        background: #1D9669;

    }

    .content{

        padding-top:5%;

    }

    .content .select-wrap{

        width:300px;

        height:40px;

        font-size: 16px;

        margin: 0 auto;

        background: #fff;

        position: relative;

    }

    .content .select-wrap:after{

        content: '';

        display: block;

        width: 10px;

        height: 10px;

        border-left:1px #000 solid;

        border-bottom:1px #000 solid;

        transform: rotate(-45deg);

        position: absolute;

        top:11px;

        right: 12px;

    }

    .content .select-wrap .title{

        padding: 0 15px;

        line-height:40px;

        cursor: pointer;

    }

    .content .select-wrap ul{

        list-style-type: none;

        background-color: #fff;

        width: 100%;

        overflow-y: auto;

        top:40px;

        position: absolute;

        left:0;

        max-height: 0;

    }

    .content .select-wrap ul li{

        padding: 0 15px;

        line-height:40px;

        cursor: pointer;

    }

    .content .select-wrap ul li:hover{

        background-color: #e0e0e0;

    }

    .content .select-wrap .selected{

        background: #39f;

        color: #fff;

    }

    .content .open ul{

        max-height: 250px;

    }

    .content .open:after{

        transform: rotate(-225deg);

        top:18px;

        transition: all .3s ease-in;

    }

</style>

<script>

    $(function () {

        $(".select-wrap").on("click",function () {

            $(this).toggleClass("open");

        });

        var liItem = $(".select-wrap ul li");

        liItem.on("click",function () {

            var $this = $(this);

            liItem.removeClass("selected");

            $this.addClass("selected");

            $(".title").text($this.text());

            $(".selected").text($this.text()).attr("data-value",$this.attr("data-value"));

        })

    })

</script>

<body>

    <div class="content">

        <div class="select-wrap">

            <p class="title">请选择</p>

            <ul>

                <li data-value="HTML">HTML</li>

                <li data-value="CSS">CSS</li>

                <li data-value="JS">JS</li>

                <li data-value="PHP">PHP</li>

            </ul>

        </div>

    </div>

</body>

</html>
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