/* 首页换动态logo*/
.logo a {
	display: inline-block;
	width: 420px;
	height: 45px;
	background-image: url(../压缩机网-空压机_行业权威媒体_交大专业技术_files/LOGO.png);
	background-repeat: no-repeat;
	background-position: 0px 0px;
}
.logo a img{
	padding-left: 15px;
	padding-top: 10px;
}

/* 登录页面动态LOGO */
#logo_gif{
	position: absolute;
	width: 23px;
	height: 23px;
	margin-top: 16px;
	margin-left: 34px;
}
#logo_gif_1{
	position: absolute;
	width: 15px;
	height: 15px;
	margin-top: 13px;
	margin-left: 31px;
}

/* 添加移动端自适应logo及隐藏广告 */
.logo_mobile{
	height: 32px;
	width: 132px;
	position: absolute;
	top: 14px;
	left: 0; 
	right: 0; 
	margin-left: auto; 
	margin-right: auto; 
}

@media only screen and (max-width: 1199px) {
	#ad_box_hidden{
		display: none;
	}
}