Better style for categories/tags page

[antiagainst]

Is your feature request related to a problem? Please describe.

Right now the categories/tags page just lists all categories/tags as a plain list (examples), with one category/tag on each line. This leaves an annoying amount of whitespace on the categories/tags page. A better style would be preferrable.

Describe the solution you'd like

A more condensed style would be nice. Maybe something like this and this?

[wangchucheng]

I agree that whitespace will be a little more when having many terms. I will test this centered style and other styles are also welcome!