#gallery{
	width: 1420px;
	margin: 100px auto;
}

#gallery li{
	list-style: none;
	float: left;
	margin: 15px;
}

#gallery a img{
	border: 2px solid #aaa;
}

#gallery a:hover img{
	border: 5px solid #75879d;
}

@media(max-width:692px){
#gallery{
	width: 300px;
	margin: 100px auto;
}
}