^^Margin, border, padding, content. Box model.

Box  model

top right bottom left   e' l'ordine in cui vengono considerati nei CSS shorthand

Padding

padding-top: 0; padding-right: .8ex; padding-bottom: .2ex; padding-left: 1ex;

shorthand

rob: nell'Anki app. funziona solo "padding: 0;"

                top right botm  left
        padding: 0, .8ex, .2ex, 1ex;
        padding: 0, .8ex, .2ex;     left = right = .8ex
        padding: 0, .8ex;         & bottom = top = 0 
        padding: 0;              all four paddings are 0