渐变色
background-image: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
background-image: linear-gradient(to top, #accbee 0%, #e7f0fd 100%);
background-image: linear-gradient(to top, #a3bded 0%, #6991c7 100%);
background-image: linear-gradient(to top, #4481eb 0%, #04befe 100%);
background-image: linear-gradient(to top, #4481eb 0%, #04befe 100%);
background-image: linear-gradient(to top, #209cff 0%, #68e0cf 100%);
https://webgradients.com/