width: 500px;
height: 500px;
background:
linear-gradient(70deg, rgb(8 9 9 / 1) 0%, rgb(69 255 228 / 1) 100%) 0px 0px / 502px 502px repeat repeat, /* New Background */
linear-gradient(0deg, rgb(69 255 144 / 1) 0%, 50%, rgb(69 168 255 / 1) 100%) 0px 0px / 100px 100px no-repeat no-repeat; /* New Background */