Colour
background-color: #B0D590;
background-color: #BFBBFD;
background-color: #FFBCCA;
background-color: #A5DCF6;
background: radial-gradient(202.50% 1391.44% at -30.93% 57.50%,var(--mc28) 0%,var(--mc28) 20.12%,var(--mc10) 100%);
background: linear-gradient(rgb(240, 243, 255) 0%, rgba(245, 246, 248, 0) 67.54%);
image back
background-color: #fff;
background-image: radial-gradient(at 75% 38%, #e4ebec 0, transparent 50%), radial-gradient(at 47% 33%, #fff 0, transparent 50%), radial-gradient(at 52% 5%, #fff 0, transparent 50%), radial-gradient(at 32% 66%, #c9dbe3 0, transparent 50%), radial-gradient(at 17% 41%, #5e6568 0, transparent 50%);
Button Primary
Button Secondary
Button Coral
Button Violet
Button Pink
https://rainbowit.net/html/histudy/button.html