No matter how you set it, it is not going to work exactly as the previous List. I decided to use this version that takes all space available, but you can set your instance of List as relative if you want.

It could be changed in any case, but I had weeks ago a discussion about it with @simurai and I think the only conclusion was that there were no optimal predefined behaviour there. For each concrete use you will need overwrite more or less CSS.

My reasoning for using this way, is just that if you set your instance to position to static or relative and then you set a width and height and you have the list the size you want, only overwriting position. If it were the other way around, the list as position static with a width and a height, and you wanted to make it position absolute with top, left, right and boom set to 0, then you would need to overwrite position, width and height. Also, I believe Digit Lists will be used commonly inside layout elements so the size will be usually all the available within that element. We can discuss it in any case.