.download_xia{width:990px;margin:0 auto;height: auto;overflow: hidden;}
.download_more{height:24px;line-height: 24px;font-size: 14px;float: left;margin-bottom: 50px;}
.download_one{width:24px;height:24px;background:url(../down-img/yuan.png);background-repeat: no-repeat;text-align: center;color: #fff;float: left;}
.download_two{width:885px;border-bottom:1px solid #8a8a8a;float: left;margin-left: 50px;padding-bottom: 10px;}
.download_three{width:30px;height:24px;background:url(../down-img/download.png);background-repeat: no-repeat;float: right;background-size: 100%}
@media (max-width: 990px) {
	.download_xia{width:100%;}
	.download_two{float: left;width:80%;}
	.download_more{width:95%;margin:10px 2.4%;height:40px;}
}

@media (max-width: 635px) {
	.download_two{float: left;width:70%;}
}
@media (max-width: 400px) {
	.download_two{margin-left: 20px;}
}