diff --git a/src/components/Echarts/renderChart.js b/src/components/Echarts/renderChart.js
index 7a595f0..a76bc85 100644
--- a/src/components/Echarts/renderChart.js
+++ b/src/components/Echarts/renderChart.js
@@ -2,9 +2,11 @@ import echarts from './echarts.min';
 import toString from '../../util/toString';
 
 export default function renderChart(props) {
-  const height = props.height || 400;
+  const height = `${props.height || 400}px`;
+  const width = props.width ? `${props.width}px` : 'auto';
   return `
-    document.getElementById('main').style.height = "${height}px";
+    document.getElementById('main').style.height = "${height}";
+    document.getElementById('main').style.width = "${width}";
     var myChart = echarts.init(document.getElementById('main'));
     myChart.setOption(${toString(props.option)});
   `