Hi,
I also had the same observation while creating the mentioned scenario. Sorry! I don't know why it's happening so i.e. the .list-item style class definition is by default set to width: 50%;
As a solution what you could do is, define/override the default style class definition with the below mentioned CSS definition in the nested-block stylesheet section:
CSS Snippet:
[data-list-item] .list-item {
width: 100%;
}
Hope this helps you!
Kind regards,
Benjith Sam