width: 500px;
height: 500px;
background:
radial-gradient(ellipse at 100% 0%, rgba(69,255,144,1) 0%, 50%, rgba(69,168,255,0) 100%) 0px 0px / 502px 503px no-repeat no-repeat, /* New Background */
linear-gradient(0deg, rgba(25,0,191,1) 0%, 50%, rgba(3,115,212,1) 100%) 0px 0px / 498px 498px no-repeat no-repeat; /* New Background */