Flowery effect for buttons
<p>I have to creat a group like this:</p>

<p><a href="http://1864.img.pp.sohu.com.cn/images/2012/8/27/19/20/u1201770_13a2bc8fb13g86_b.png" rel="nofollow">http://1864.img.pp.sohu.com.cn/images/2012/8/27/19/20/u1201770_13a2bc8fb13g86_b.png</a></p>

<p>When I click the red one , it will be bigger ,and the others will be small.
So do the others.It makes me trouble , who can help me ,thank you .</p>
