.detail-test {
    height: 100px;
    /*这里展示scss里引入图片的方式*/
    background: url("../images/components/nav_icon.png") no-repeat left center;
    img {
	    width: 100%;
    }
}
.detail-test-bg {
    height: 200px;
    /*这里展示scss里引入图片的方式*/
    background: url("../images/cover.png") no-repeat left center;
}
.detail-test-img {
    height: 100px;
}
body {
    background-color: #eee;
}