This distribution extending Chart.js capability by adding responsive feature. Whole tribute and source of Chart.js can be download and update on its origin repository + documentation

i'am wrap this feature in file chartjs-option.js through function

respChart(selector,data)

1. Import Chart.js source at the first place. i recomended the head.js power to doing this

2. Import chartjs-option.js after step 1 declaration and make sure that this part only be execute after Chart.js ready.

3. Create a canvas and make sure it has container.

    ...
    <canvas class="myChart" width="800" ></canvas>
    ...
   

4. Prepare your data

    <script>
    ...
    var data = {
    	labels : ["January","February","March","April","May","June","July"],
    	datasets : [
    		{
    			fillColor : "rgba(151,187,205,0.5)",
    			strokeColor : "rgba(151,187,205,1)",
    			pointColor : "rgba(151,187,205,1)",
    			pointStrokeColor : "#fff",
    			data : [28,48,40,19,96,27,100]
    		}
    	]
    };
    ...
   

5. Call the extended function

    respChart($(".myChart"),data);
   

6. Enjoy your responsive chart