By the way, in case anyone wants a tweaked version of this code to do as @paul2009 recommends, which is to show the content all the time and not just on hover, AND a slightly cleaner version of the code here you go:
section[data-section-id="66152fcfd9786310fc238c05"] {
.user-items-list-simple .list-item-content {
position: absolute;
background: rgba(0,0,0,0.2);
height: 100%;
width: 100%;
top:0;
left: 0;
justify-content: center !important;
}
.list-item {
position: relative;
}
.list-item-content__title {
color: #fff !important;
}
.list-item-content__description {
color: #fff !important;
}
}
It reduces the need to repeat the section ID so much, making it much easier to target multiple section IDs to apply this code to multiple sections or pages (just separate your multiple ID declarations on the top line with a comma).