When I Hover on #main, Style of #box and #box2 want to change. But it is not working.

Html code is 

```
<div id="main">Main</div>
<div id="box">Text</div>
<div id="box1" >Text1</div>

```

Css is 

```
#main:hover + #box,#box1 {
    background-color: green;
}

```

Here is the [demo link](http://jsfiddle.net/spk063/kVjrh/3/)