How to prevent table header from adding linefeed?

I have a table in which the tableheader contents are creating linefeed w开发者_如何学Gohen its long...

<th>Accounting Date Time (hh:mm): </th>

What happens is that after the word Date, the rest of the title is on the second line. pls advise. Thanks in advance

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Use CSS.

th {
    white-space: nowrap;
}

Works in IE, Firefox, Chrome, Safari, and Opera.