when the content muti lines ,submit button will be hidden.

[cddsgtc]

[wxs77577]

have you try to scroll down?

[cddsgtc]

@wxs77577 of course, but it just stick there and nothing happened.

[wxs77577]

Sorry, I can't find any problem like you said, can you provide more information about your os and browser, also try to disable all of your plugins in you browsers.