add tip style to style entry

cookbook/cb-02-inline-styles.md

@@ -6,17 +6,43 @@ permalink: inline-styles.html
 script: "cookbook/inline-styles.js"
 ---
 
+## Q&A format
+
 ### Problem
-You want to apply inline style to an element.
+You want to put inline style to an element.
 
 ### Solution
 Instead of writing a string, create an object whose key is the camelCased version of the style name, and whose value is the style's value, in string:
 
-<div id="examples">
-	<div class="example">
-		<div id="inlineStylesExample"></div>
-	</div>
-</div>
+```html
+/** @jsx React.DOM */
+
+var divStyle = {
+  color: 'white',
+  backgroundColor: 'lightblue',
+  WebkitTransition: 'all' // note the capital 'W' here
+};
+
+React.renderComponent(<div style={divStyle}>Hello World!</div>, mountNode);
+```
 
 ### Discussion
 Style keys are camelCased in order to be consistent with accessing the properties using `node.style.___` in DOM. This also explains why `WebkitTransition` has an uppercase 'W'.
+
+## Tips format
+
+In React, inline styles are nto specified as a string, but as an object whose key is the camelCased version of the style name, and whose value is the style's value in string:
+
+```html
+/** @jsx React.DOM */
+
+var divStyle = {
+  color: 'white',
+  backgroundColor: 'lightblue',
+  WebkitTransition: 'all' // note the capital 'W' here
+};
+
+React.renderComponent(<div style={divStyle}>Hello World!</div>, mountNode);
+```
+
+Style keys are camelCased in order to be consistent with accessing the properties using node.style.___ in DOM. This also explains why WebkitTransition has an uppercase 'W'.