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修改select样式，vue select

    <style>
        .selectbox{ width: 200px; display: inline-block; overflow-x: hidden; height: 28px; line-height: 28px; font-size: 0;  background:#fff url(images/selectbg.png) right center no-repeat; border: 1px solid #dcdbdb; vertical-align: middle;}
        .selectbox select{cursor: pointer; padding: 0 8px; height: 28px; line-height: 28px; font-size: 12px; width:118%; padding-right: 18%; background:none; border: none;}
        .selectbox select option{ padding:5px;}
    </style>

    <div class="selectbox">
        <select>
            <option>默认值</option>
            <option>选项之</option>
        </select>
    </div>

    <style>
                  .selectbox select {
                padding: 6px 30px 6px 15px;
                background: #fff;
                width: 440px;
                height: 30px;
                text-align: left;
                vertical-align: middle;
                border: 1px solid #94c1e7;
                -moz-border-radius: 6px;
                -webkit-border-radius: 6px;
                border-radius: 3px;
                -webkit-appearance: none;
                -moz-appearance: none;
                appearance: non
                cursor: pointer;
                outline: none;
            }

            /*LABEL FOR SELECT*/
            label.selectbox {
                position: relative;
                display: inline-block;
            }

            /*DOWNWARD ARROW (25bc)*/
            label.selectbox::after {
                content: "25bc";
                position: absolute;
                top: 0;
                right: 0;
                bottom: 0;
                width: 30px;
                line-height: 30px;
                vertical-align: middle;
                text-align: center;
                background: #94c1e7;
                color: #2984ce;
                -moz-border-radius: 0 6px 6px 0;
                -webkit-border-radius: 0 6px 6px 0;
                border-radius: 0 6px 6px 0;
                pointer-events: none;
            }
    </style>

                  <label class="selectbox">
                    <select name="" id="">
                        <option value="张三">张三</option>
                        <option value="李四">李四</option>
                        <option value="王五">王五</option>
                        <option value="赵六">赵六</option>
                    </select>
                </label>

<!Doctype>
<html>
<head>
    <meta charset="utf-8">
    <style>
        select {
            width: 185pt;
            height: 40pt;
            line-height: 40pt;
            padding-right: 20pt;
            text-indent: 4pt;
            text-align: left;
            vertical-align: middle;
            border: 1px solid #94c1e7;
            -moz-border-radius: 6px;
            -webkit-border-radius: 6px;
            border-radius: 6px;
            -webkit-appearance: none;
            -moz-appearance: none;
            appearance: none;
            font-family: SimHei;
            font-size: 18pt;
            font-weight: 500;
            color: RGBA(102, 102, 102, 0.7);
            cursor: pointer;
            outline: none;
        }

        /*LABEL FOR SELECT*/
        label {
            position: relative;
            display: inline-block;
        }

        /*DOWNWARD ARROW (25bc)*/
        label::after {
            content: "25bc";
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 20pt;
            line-height: 40pt;
            vertical-align: middle;
            text-align: center;
            background: #94c1e7;
            color: #2984ce;
            -moz-border-radius: 0 6px 6px 0;
            -webkit-border-radius: 0 6px 6px 0;
            border-radius: 0 6px 6px 0;
            pointer-events: none;
        }
    </style>
</head>
<body>
<div id="app">
    <div class="selectbox">
        <label>
            <select v-model="selected">
                <option v-for="(item,index) of options" :value="item.value">{{item.value}}</option>
            </select>
        </label>
        <p>您选择了：<span>{{selected}}</span></p>
    </div>
</div>
<script src="../vue.js"></script>
<script>
    var app = new Vue({
        el: "#app",
        data: {
            options: [{
                text: 'One',
                value: 'A'
            }, {
                text: 'Two',
                value: 'B'
            }, {
                text: 'Three',
                value: 'C'
            }],
            selected:'B'
        }
    });
</script>
</body>
</html>

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原文地址：https://www.cnblogs.com/theWayToAce/p/7324130.html