Board Thread:Support Requests - Designing Your Wikia/@comment-3329304-20151024074401

Since I switched to the new infobox template, I've been getting mini-sized images like this. I have to keep the 100% for height and width for image container background color, as the images are all transparent png. How can I get the images to at least be of 300px height (max 500px) with proportional width? 