Question about CSS position and layout display properties

Question

In CSS-Positioning & Layout under the 1st lesson (Display Properties) is a TryItYourself code snippet in which you can play around with the display which they have as "none." Taking up the invitation, I changed the value, using ones they suggested: list-item, table (by itself then adding -cell, -column) and grid. All these I listed did nothing but give me a normal format. But when I tried table-column, it acted like the value "none" did: the text disappeared! Please, why did this happen? ~MJC

Answer 1

the table-column needs to be part in a table to work