#c{
	border-top: 20px solid yellow; 
	border-bottom:2px solid yellow ;
	border-left:2px solid yellow ;
	border-right:2px solid yellow ;
	transition: 0.8s ease-out;

}
#c:hover{
	border-top: 20px solid #5cb85c; 
	border-bottom:2px solid #5cb85c;
	border-left:2px solid #5cb85c ;
	border-right:2px solid #5cb85c;
	
}