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javascript - 请教前端大神bootstrap这个怎么实现？

下面的等级条，不同的记录值，对应不同的颜色块，并且上面会有对应的文字提示。这个是前端给的UI设计图。求高手支招！
黄舟2776 Il y a quelques jours519
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怪我咯2017-04-11 09:53:28
你要的是这种效果吧，
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        li{
            list-style-type: none;
        }
        .li-item{
            position: relative;
            float: left;
            margin-right: 20px;
            margin-top: 100px;
        }
        .item{
            display: block;
            width: 80px;
            height: 20px;
            background-color: #ccc;
            border-radius: 4px;
        }
        .item-hover{
            position: absolute;
            width: 52px;
            height: 52px;
            top: -80px;
            left: 10px;
            border-radius: 50%;
            border: 4px solid #ccc;
            background-color: #fff;
            text-align: center;
            line-height:52px;
            display: none;
            z-index: 1;
        }
        .item-hover span{
            color: #ccc;
            font-size: 12px;

            font-family: 'Microsoft YaHei';
        }
        .item-hover:after{
            position: absolute;
            content: '';
            display: block;
            top: 52px;
            left: 16px;
            border-top: 16px solid #ccc;
            border-left: 10px solid transparent;
            border-right: 10px solid transparent;
            z-index: 0;
        }
        .li-item:hover .item-hover{
            display: block;
        }
        .item-a{
            background-color: #8bcfec;
        }
        .item-a-hover{
            border: 4px solid #8bcfec;
        }
        .item-a-hover span{
            color: #8bcfec;
        }
        .item-a-hover:after{
            border-top: 16px solid #8bcfec;
        }
        .item-b{
            background-color: #54bae6;
        }
        .item-b-hover{
            border: 4px solid #54bae6;
        }
        .item-b-hover span{
            color: #54bae6;
        }
        .item-b-hover:after{
            border-top: 16px solid #54bae6;
        }
        .item-c{
            background-color: #99d26b;
        }
        .item-c-hover{
            border: 4px solid #99d26b;
        }
        .item-c-hover span{
            color: #99d26b;
        }
        .item-c-hover:after{
            border-top: 16px solid #99d26b;
        }
        .item-d{
            background-color: #ec8c59;
        }
        .item-d-hover{
            border: 4px solid #ec8c59;
        }
        .item-d-hover span{
            color: #ec8c59;
        }
        .item-d-hover:after{
            border-top: 16px solid #ec8c59;
        }
        .item-e{
            background-color: #f2898d;
        }
        .item-e-hover {
            border: 4px solid #f2898d;
        }
        .item-e-hover span{
            color: #f2898d;
        }
        .item-e-hover:after{
            border-top: 16px solid #f2898d;
        }
        .item-f{
            background-color: #de595e;
        }
        .item-f-hover{
            border: 4px solid #de595e;
        }
        .item-f-hover span{
            color: #de595e;
        }
        .item-f-hover:after{
            border-top: 16px solid #de595e;
        }
        .item-g{
            background-color: #e81019;
        }
        .item-g-hover{
            border: 4px solid #e81019;
        }
        .item-g-hover span{
            color: #e81019;
        }
        .item-g-hover:after{
            border-top: 16px solid #e81019;
        }


    </style>
</head>
<body>
<ul>
    <li class="li-item">
        <a href="" class="item item-a"></a>
        <p class="item-hover item-a-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-b"></a>
        <p class="item-hover item-b-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-c"></a>
        <p class="item-hover item-c-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-d"></a>
        <p class="item-hover item-d-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-e"></a>
        <p class="item-hover item-e-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-f"></a>
        <p class="item-hover item-f-hover">
            <span>血糖较低</span>
        </p>
    </li>
    <li class="li-item">
        <a href="" class="item item-g"></a>
        <p class="item-hover item-g-hover">
            <span>血糖较低</span>
        </p>
    </li>
</ul>
</body>
</html>
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