I recently had a request on one of my sites to increase the size of the Description column in the SharePoint views. Out of the box, there’s no easy way to do that. But, with a little snippet of jQuery placed in a Content Editor Web Part on the page with the view, you can easily change any of the column widths…
Here’s the code I used:
If you have multiple columns to modify, just repeat the line with the “div.” string. This is so simple, my customer went in and made her own changes to the code.
Many thanks to Mark Miller, who provided the solution in the post SharePoint jQuery: Setting View Column Width.