Chart with gradient background using CSS

HTML

<script type="text/javascript" src="http://www.amcharts.com/lib/3/amcharts.js"></script>
<script type="text/javascript" src="http://www.amcharts.com/lib/3/serial.js"></script>
<script type="text/javascript" src="http://www.amcharts.com/lib/3/themes/none.js"></script>
<div id="chartdiv"></div>

CSS

#chartdiv {
	width		: 100%;
	height		: 500px;
	font-size	: 11px;
    background: rgb(189,210,247); /* Old browsers */
    background: rgb(189,210,247); /* Old browsers */
    /* IE9 SVG, needs conditional override of 'filter' to 'none' */
    background: url(data:image/svg+xml;base64,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);
    background: -moz-linear-gradient(top,  rgba(189,210,247,1) 0%, rgba(7,9,16,1) 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(189,210,247,1)), color-stop(100%,rgba(79,96,165,1))); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top,  rgba(189,210,247,1) 0%,rgba(79,96,165,1) 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top,  rgba(189,210,247,1) 0%,rgba(79,96,165,1) 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top,  rgba(189,210,247,1) 0%,rgba(79,96,165,1) 100%); /* IE10+ */
    background: linear-gradient(to bottom,  rgba(189,210,247,1) 0%,rgba(79,96,165,1) 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#bdd2f7', endColorstr='#4f60a5',GradientType=0 ); /* IE6-8 */

}

JavaScript

var chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "none",
    "dataProvider": [{
        "country": "USA",
        "visits": 2025
    }, {
        "country": "China",
        "visits": 1882
    }, {
        "country": "Japan",
        "visits": 1809
    }, {
        "country": "Germany",
        "visits": 1322
    }, {
        "country": "UK",
        "visits": 1122
    }, {
        "country": "France",
        "visits": 1114
    }, {
        "country": "India",
        "visits": 984
    }, {
        "country": "Spain",
        "visits": 711
    }, {
        "country": "Netherlands",
        "visits": 665
    }, {
        "country": "Russia",
        "visits": 580
    }, {
        "country": "South Korea",
        "visits": 443
    }, {
        "country": "Canada",
        "visits": 441
    }, {
        "country": "Brazil",
        "visits": 395
    }],
    "valueAxes": [{
        "gridColor":"#FFFFFF",
		"gridAlpha": 0.2,
		"dashLength": 0
    }],
    "gridAboveGraphs": true,
    "startDuration": 1,
    "graphs": [{
        "balloonText": "[[category]]: <b>[[value]]</b>",
        "fillAlphas": 0.8,
        "lineAlpha": 0.2,
        "type": "column",
        "valueField": "visits"		
    }],
    "chartCursor": {
        "categoryBalloonEnabled": false,
        "cursorAlpha": 0,
        "zoomable": false
    },
    "categoryField": "country",
    "categoryAxis": {
        "gridPosition": "start",
        "gridAlpha": 0
    },
	"exportConfig":{
	  "menuTop": 0,
	  "menuItems": [{
      "icon": '/lib/3/images/export.png',
      "format": 'png'	  
      }]  
	}
});