Change thumbnail size under the main image in single ad listing?
I have tried to change the following code
add_image_size('ad-thumb', 167, 117, true);
add_image_size('ad-small', 167, 117, true);
add_image_size('ad-medium', 167, 117, true);
to make thumbnails sized at 167 wide and 117 tall.
However, after making changes, and view the listing page, the thumbnail did not resize and was sized to 50 x 50. If I use CSS to "stretch/resize" them to 167px x 117px, the result is not good as they look fuzzy or stretched which I do not want.
Any ideas how to set proper thumbnail size at 167 px wide and 117 px tall for the thumbnails that are under main image?
Thanks for assistance in advance.