# alignment – Align 1st row of Grid different from the other rows

The grid formed below aligns its columns as I want on the decimal point:

``````x = 2. Pi/24 Range[0, 5];
data = Transpose[{x, Chop@Sin[x]}];

Grid[data, Alignment -> {"."}]
``````

Now I want to prepend a row to the grid with its two items centered. I tried the following, which if I understand the documentation, ought to do it:

``````Grid[Prepend[data, {"x", "sin x"}], Alignment -> {Center, {"."}}]
``````

But that just centers all entries in each column.

How do I get just the first row’s entries to be centered but the remaining rows to be aligned on the decimal point?