feats

src/components/charts/Line.js

@@ -55,6 +55,7 @@ export default class LineChart extends Component {
 
     const defaultOpt = {
       color: [ colorWithOpacity(1) ],
+      grid: { top: 5, bottom: 5 },
       xAxis: { type: 'category', boundaryGap: false },
       yAxis: { type: 'value' },
       series: [],