.maindesign {
	width:100%;
	max-width: 600px;
	margin:30px auto 10px;
}
@media screen and (max-width: 767px){
.maindesign {
	width:100%;
}
	
}
.maindesign img{
	width: 100%;
	margin-bottom: 40px;
}
.maindesign a:hover img {
    opacity: 0.3;
    filter: alpha(opacity=30);
    -ms-filter: "alpha( opacity=30 )";
	background-color:#fff;
}