img{
	display: block;
	width: 100%;
	margin: auto;
}
.big-img{
	margin-bottom: 3px;
}
.img-list:after{
	content: '';
	display: block;
	clear: both;
}
.col-2{
	float: left;
	box-sizing: border-box;
	width: 50%;
}
@media only screen and (max-width: 768px){
header a{
	display:inline-block;
}
}