background: bg-color bg-image position/bg-size bg-repeat bg-origin bg-clip bg-attachment initial|inherit;
颜色 + 图片
background: #ff5400 url() no-repeat;
渐变 + 图片
background: url() no-repeat right bottom, linear-gradient(to right, #424edc,#4185fb);
多图片
background: url() no-repeat left top, url() no-repeat right top, url() no-repeat left bottom, url() no-repeat right bottom;
多图片 + 颜色
background: url() no-repeat left top, url() no-repeat right top, url() no-repeat left bottom, url() no-repeat right bottom, #ff5400;
多图片 + 渐变
background: url() no-repeat left top, url() no-repeat right top, url() no-repeat left bottom, url() no-repeat right bottom, linear-gradient(to right, #424edc,#4185fb);
