D3.js - Score card

http://codepen.io/andresfulla/pen/eNbWxV

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<div class="graph"></div>

CSS

@import url(http://fonts.googleapis.com/css?family=Ubuntu);
 body {
    padding: .1px;
    height: 100vh;
}
.graph {
    padding: 1em 2em 1.5em;
    background-color: #263827;
    width: 50%;
    border-radius: 5px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    -webkit-transition: opacity 1s linear;
    transition: opacity 1s linear;
    box-shadow: 0 0 10px 2px rgba(0, 0, 0, 0.3);
}
.name {
    color: #fff;
    top: 0;
    font-family: Ubuntu, sans-serif;
    text-transform: uppercase;
    margin-top: 1.5em;
}
.name .score {
    color: rgba(255, 255, 255, 0.5);
}
.bar {
    width: 100%;
    height: 30px;
    background-color: #294d5a;
    margin: 1em 0;
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}
.bar .infoBar {
    content:"";
    display: block;
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 30px;
    background: -webkit-linear-gradient(left, #3a7bd3, #4d71da);
    background: linear-gradient(to right, #3a7bd3, #4d71da);
    border-radius: 30px 30px 30px 30px;
    box-shadow: 0 0 20px 5px rgba(38, 56, 39, 0.7);
}

JavaScript

(function () {
    var graph = d3.select('.graph');
    var data = [{
        'name': 'Jose',
            'score': 50
    }, {
        'name': 'M.J',
            'score': 20
    }, {
        'name': 'Gabi',
            'score': 100
    }, {
        'name': 'Loki',
            'score': 13
    }];
    var containerBars = graph.selectAll('div').data(data).enter().append('div');

    var xScale = d3.scale.linear().range([100, 0]);

    var xMin = 0;
    var xMax = 100;

    xScale.domain([xMin, xMax]);

    containerBars.append('p').attr('class', 'name').text(function (data) {
        return data.name;
    }).append('span').attr('class', 'score').text(function (data) {
        return ' (' + data.score + ')';
    });

    var bars = containerBars.append('div').attr({
        'class': 'bar'
    });

    var infoBar = bars.append('div').attr({
        'class': 'infoBar'
    }).style('left', function (data) {
        return '-100%';
    });

    infoBar.transition().duration(1500).ease('cubic-out').style({
        'left': function (data) {
            return -xScale(data.score) + '%';
        }
    });
}());