Hi again RFAWP.

You can try something like this:

th.column-undenaturednonbeveragenonfueluse {
word-break: break-word !important;
width: 10% !important;
}

That makes the second column look like this:

You can also do that for other columns, just instead of "undenaturednonbeveragenonfueluse", replace it with the name of the other column, like:

denaturednonfueluse

undenaturedfueluse

denaturedfueluse

If you put the CSS in Custom CSS field in main settings of wpDataTables, it should be reflected both in the back and in front-end, but if you need it just for front-end, you can put it in between the <style>...</style> tags, like this:

<style>
th.column-undenaturednonbeveragenonfueluse {
word-break: break-word !important;
width: 10% !important;
}
</style>
[wpdatatable id=1]

Best regards.