background-repeat: no-repeat;

background-position: top, top, bottom, bottom;

background-attachment: local, scroll, local, scroll;

background-size: 100% 50px, 100% 15px, 100% 50px, 100% 15px;

background-image: linear-gradient(white 30%, transparent),

                  radial-gradient(at 50% 0, rgba(0, 0, 0, .2), transparent 70%),

                  linear-gradient(to top,white 30%, transparent),

                  radial-gradient(at 50% 100%, rgba(0, 0, 0, .2), transparent 70%);