#gym .contents {
	width:1310px;
	margin: 100px auto 20px auto;
	text-align:center;
	font-size:20px;
}

#gym .contents h3 {
    text-align: center;
    font-size: 40px;
}

@media screen and (max-width: 1310px){
	#gym .contents { width:100%; }
	#gym .contents img{ display: block; margin: auto; }
}
@media screen and (max-width: 640px){
	#gym .contents img{ width: 100%; }
}