.bg_pattern { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: #fff; z-index: -1; } .Paper_v2 { background-image: repeating-linear-gradient(to bottom, transparent 25px, rgba(0, 0, 0, 0.04) 26px, rgba(0, 0, 0, 0.04) 26px, transparent 27px, transparent 51px, rgba(0, 0, 0, 0.04) 52px, rgba(0, 0, 0, 0.04) 52px, transparent 53px, transparent 77px, rgba(0, 0, 0, 0.04) 78p