How do I move my Index gallery text so it’s underneath the images to the left?

Add to Design > Custom CSS

body.homepage .Index-gallery-item-content {
    position: absolute;
    bottom: -50px;
    margin-left: 0 !important;
}
body.homepage .Index-gallery-item-content * {
    color: black !important;
}
section#new-gallery-3 .Index-gallery-item-inner {
    overflow: visible;
}