slider，滑块

不带数字的slider

<div class="weui-slider">
    <div class="weui-slider__inner">
        <div style="width: 0;" class="weui-slider__track"></div>
        <div style="left: 0;" class="weui-slider__handler"></div>
    </div>
</div>

末端带数字的slider

<div class="weui-slider-box">
    <div class="weui-slider">
        <div class="weui-slider__inner">
            <div style="width: 50%;" class="weui-slider__track"></div>
            <div style="left: 50%;" class="weui-slider__handler"></div>
        </div>
    </div>
    <div class="weui-slider-box__value">50</div>
</div>

js的配合用法请看：https://weui.io/#slider

原文: https://github.com/Tencent/weui/wiki/Slider