Switching tabs appends a fragment identifier to the URL, which makes the browser scroll down to the specified element. This isn't very useful on such a small page. In fact, it's really annoying when you're switching between tabs and the tabs keep moving up and down in your viewport:
chrismytton
commented
9 years ago
Switching tabs appends a fragment identifier to the URL, which makes the browser scroll down to the specified element. This isn't very useful on such a small page. In fact, it's really annoying when you're switching between tabs and the tabs keep moving up and down in your viewport: