If I may… Maybe you’re a bit overusing flex here… and have incredibly complex class names
Anyway, you could probably use this to make it work :
<style>
.w-dyn-item:nth-child(odd) .bg_proglist_item_section {
background-color: #FFF
}
.w-dyn-item:nth-child(odd) .bg_proglist_item_content_inner {
flex-direction: row-reverse;
}
.w-dyn-item:nth-child(odd) .bg_proglist_item_detail {
padding-left: 55px;
padding-right: 0px;
}
</style>