refactor(wrapNode): no border styles

src/NodeRenderer/NodeTypes/DefaultNode.js

@@ -2,8 +2,14 @@ import React from 'react';
 
 import Handle from '../Handle';
 
+const nodeStyles = {
+  background: '#ff6060',
+  padding: 10,
+  borderRadius: 5
+};
+
 export default ({ data, style }) => (
-  <div style={{ background: '#ff6060', padding: '10px', ...style }}>
+  <div style={{ ...nodeStyles, ...style }}>
     <Handle style={{ top: 0 }} />
     {data.label}
     <Handle style={{ bottom: 0, top: 'auto', transform: 'translate(-50%, 50%)' }} />

src/NodeRenderer/NodeTypes/InputNode.js

@@ -2,8 +2,14 @@ import React from 'react';
 
 import Handle from '../Handle';
 
+const nodeStyles = {
+  background: '#9999ff',
+  padding: 10,
+  borderRadius: 5
+};
+
 export default ({ data, style }) => (
-  <div style={{ background: '#9999ff', padding: '10px', ...style }}>
+  <div style={{ ...nodeStyles, ...style }}>
     {data.label}
     <Handle style={{ bottom: 0, top: 'auto', transform: 'translate(-50%, 50%)' }} />
   </div>

src/NodeRenderer/NodeTypes/OutputNode.js

@@ -2,8 +2,14 @@ import React from 'react';
 
 import Handle from '../Handle';
 
+const nodeStyles = {
+  background: '#55ff99',
+  padding: 10,
+  borderRadius: 5
+};
+
 export default ({ data, style }) => (
-  <div style={{ background: '#55ff99', padding: '10px', ...style }}>
+  <div style={{ ...nodeStyles, ...style }}>
     <Handle style={{ top: 0 }} />
     {data.label}
   </div>