Please feel free to experiment here, after the four dashes below... and please do NOT create new pages without any meaningful content just to try it out.
Tip: Shift-click "HelpOnEditing" to open a second window with the help pages.
italic bold typewriter
backtick typewriter (configurable)
view and edit chinese by setting page encoding to UTF-8
There are two Chinese Chars above. The first one should look like a dash or minus, "-", means "one". The second should look like a rectangle, means "mouth". If you saw these two correctly, congratulation, you can see Chinese in your browser.
view and edit Japanese by setting page encoding to UTF-8