Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.
What's up with the width: 50% for the search box?
Looks like some CSS changes to an unrelated area in the site slipped in to the shared CSS file.
I have removed this specific rule and the search box is back to normal.
This will be deployed in the next build.