WangWeimin

@StarsExpress Are you sure? `pywebio.output.remove(scope_name)` will remove the scope as well as it's content.

Would you provide a sample code to reproduce this bug?

It's a bug, I will found a way to fix it. By the way, setting a appropriate `width` to put_select can avoid this issue: ```python pywebio.pin.put_select(f'items_{user}', options_for_users.get(user, items_list), multiple=True).style('width: 400px'),...

Some update: In latest PyWebIO, you can use `pywebio.pin.put_select(native=True)` to use the web browser's native select widget, it has no styling problems, but the browser's built-in multi-select widget is a...

可以尝试使用 aiohttp 或 fastapi 后端来启动pywebio app 文档： https://pywebio.readthedocs.io/zh_CN/latest/platform.html#aiohttp-support