body {
}

.content_helper_banner {
}

	.content_helper_banner img {
		width: 100%;
	}

.content_helper_nav {
	width: 1100px;
	margin: 0 auto;
	text-align: center;
}

	.content_helper_nav span {
		display: inline-block;
		padding-left: 20px;
		color: #333;
		font-size: 16px;
		margin: 0 30px;
		line-height: 50px;
		background-repeat: no-repeat;
		background-position: left center;
		border-bottom: 2px solid #fff;
		cursor: pointer;
	}

		.content_helper_nav span:nth-child(1) {
			background-image: url('../img/Auradesign/08.png');
			background-size: 14px;
		}

		.content_helper_nav span:nth-child(2) {
			background-image: url('../img/Auradesign/09.png');
			background-size: 15px;
		}

		.content_helper_nav span:nth-child(3) {
			background-image: url('../img/Auradesign/10.png');
			background-size: 16px;
		}

		.content_helper_nav span:nth-child(4) {
			background-image: url('../img/Auradesign/11.png');
			background-size: 17px;
		}

		.content_helper_nav span:nth-child(5) {
			background-image: url('../img/Auradesign/12.png');
			background-size: 16px;
		}

		.content_helper_nav span:nth-child(6) {
			background-image: url('../img/Auradesign/13.png');
			background-size: 15px;
		}


	.content_helper_nav .select[type="1"]{
		background-image: url('../img/Auradesign/14.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}

	.content_helper_nav .select[type="2"] {
		background-image: url('../img/Auradesign/15.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}

	.content_helper_nav .select[type="3"] {
		background-image: url('../img/Auradesign/16.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}

	.content_helper_nav .select[type="4"] {
		background-image: url('../img/Auradesign/17.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}

	.content_helper_nav .select[type="5"] {
		background-image: url('../img/Auradesign/18.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}

	.content_helper_nav .select[type="6"] {
		background-image: url('../img/Auradesign/19.png');
		color: #0BA29A;
		border-bottom: 2px solid #0BA29A;
	}



.content_Auradesign_case_items_box .centerImg{
    width: 375px;
    height: 244px;
}