Boostrap + Chart.js

HTML

<script src="http://www.chartjs.org/assets/Chart.js"></script>
<link rel="stylesheet" href="http://getbootstrap.com/dist/css/bootstrap.css">
<div class="panel panel-success">
    <div class="panel-heading">
         <h3 class="panel-title">Panel Title</h3>

    </div>
    <div class="panel-body">
        <canvas id="myChart" width="600" height="400"></canvas>
    </div>
</div>

CSS

#myChart {
    margin: auto;
    width: 600px;
}

JavaScript

var data = {
    labels: ["January", "February", "March", "April", "May", "June", "July"],
    datasets: [{
        label: "My First dataset",
        fillColor: "rgba(220,220,220,0.2)",
        strokeColor: "rgba(220,220,220,1)",
        pointColor: "rgba(220,220,220,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(220,220,220,1)",
        data: [65, 59, 80, 81, 56, 55, 40]
    }, {
        label: "My Second dataset",
        fillColor: "rgba(151,187,205,0.2)",
        strokeColor: "rgba(151,187,205,1)",
        pointColor: "rgba(151,187,205,1)",
        pointStrokeColor: "#fff",
        pointHighlightFill: "#fff",
        pointHighlightStroke: "rgba(151,187,205,1)",
        data: [28, 48, 40, 19, 86, 27, 90]
    }]
};

var options = {
    animation: false,
    scaleoverride: true,
    responsive: false,
    maintainAspectRatio: false
}

//Get the context of the canvas element we want to select
var ctx = $("#myChart").get(0).getContext("2d");
var myLineChart = new Chart(ctx).Line(data, options);