width: 253px;
height: 262px;
background:
radial-gradient(circle at 50% 100%, rgba(255,69,127,1) 0%, 50%, rgba(69,168,255,0) 50%) 100px 20px / 129px 77px no-repeat no-repeat, /* Top Right */
radial-gradient(circle at 50% 100%, rgba(255,69,127,1) 0%, 50%, rgba(69,168,255,0) 50%) 21px 20px / 129px 77px no-repeat no-repeat, /* Top Left */
radial-gradient(ellipse at 159% 0%, rgba(255,69,127,1) 0%, 50%, rgba(69,168,255,0) 50%) -44px 96px / 170px 205px no-repeat no-repeat, /* Bottom Left */
radial-gradient(ellipse at -61% 0%, rgba(255,69,127,1) 0%, 50%, rgba(69,168,255,0) 50%) 125px 96px / 170px 205px no-repeat no-repeat; /* Bottom Right */