.list{width:1280px; margin:20px auto;}
.list ul{width:100%; display: flex; flex-wrap: wrap; justify-content: space-between; }
.list ul li{width:400px; height:auto; margin:20px 0 20px; }
.list ul li img{width:100%; height:250px;}
.list ul li a{color:#333; line-height: 180%; font-size:16px;}


@media only screen and (max-width: 640px){
	.list{width:94%; margin:20px auto; font-size:0.75rem;}
	.list ul{width:100%; padding-top: 40px;}
	.list ul li{width:100%; height:auto; text-align:center; margin:20px 0;}
	.list ul li img{height:auto;}
	.copyright{display: none;}
}