Hi there,
try this method, it adds a pseudo element with a gradient fill to the bottom of your section:
#generate-section-1.generate-sections-container {
position: relative;
}
#generate-section-1.generate-sections-container:before {
content: '';
position: absolute;
left: 0;
right: 0;
bottom: 0;
top: 70%;
background: rgb(239, 239, 239);
background: linear-gradient(3deg, rgba(239, 239, 239, 1) 0%, rgba(239, 239, 239, 1) 50%, rgba(255, 255, 255, 0) 50%, rgba(255, 255, 255, 0) 100%);
}