Google custom search engine search results width adjustment

Google Custom Search Engine is a product launched by Google in 2006. Has not been contacted, because the monkey felt that the search response speed of Z-Blog was a little slow, so that day when the blog was skinned, it was added incidentally. But when added, width adjustment becomes a problem, and the default width minimum in the code is 500. You can only put the code under a Div and use CSS to control the width...