Button expose effect android
<p>following link has some button at the top like :: "DISEASES" , "FOOD &amp; NUTRITION" , "PHYSICAL ACTIVITY"
<a href="http://www.bam.gov/sub_yourbody/yourbody_smilestyle.html" rel="nofollow">http://www.bam.gov/sub_yourbody/yourbody_smilestyle.html</a></p>

<p>when you focus it it will grow and remove from it it will small 
so question is how can i do it? </p>
