How to achieve the layout of the upper and lower parts

[laowus]

I want an up and down layout that displays some content in one row and multiple columns, and below is an operation panel. I have done it well, but it has not been very ideal
this is my code

`from flet import *

def main(page: Page):
page.padding = 0

row = Row(wrap=True, run_spacing=80, scroll=True)
for i in range(20):
    row.controls.append(
        Container(
            content=Text(f"This is {i}"),
            bgcolor=colors.BLACK38,
            width=300,
            height=100,
            margin=margin.only(right=50),
        )
    )
m = Container(content=row, margin=margin.only(bottom=205), bgcolor=colors.RED_200)

next_btn = Column(
    [
        Container(
            Row(
                [Text("show info")],
                alignment="center",
            ),
            height=200,
            bgcolor=colors.AMBER_100,
            border=border.only(top=border.BorderSide(2, "grey")),
            padding=0,
        )
    ],
    alignment="end",
)
c = Stack(
    controls=[m, next_btn],
    expand=True,
)

page.add(c)

app(target=main, assets_dir="assets")
`
I feel that many things in Flet are not very mature, I don't know if it's because I didn't use them wrong

[ndonkoHenri]

I dont know what you want to achieve but below is an example:

from flet import *


def main(page: Page):
    page.padding = 0

    row = Row(wrap=True, run_spacing=80, scroll=True)
    for i in range(20):
        row.controls.append(
            Container(
                content=Text(f"This is {i}"),
                bgcolor=colors.BLACK38,
                width=300,
                height=100,
                # margin=margin.only(right=50),
            )
        )
    m = Container(
        content=row,
        # margin=margin.only(bottom=205),
        bgcolor=colors.RED_200,
        expand=True,
    )

    next_btn = Column(
        [
            Container(
                Row(
                    [Text("show info")],
                    alignment="center",
                ),
                height=200,
                bgcolor=colors.AMBER_100,
                border=border.only(top=border.BorderSide(2, "grey")),
                padding=0,
            )
        ],
        alignment="end",
    )
    # c = Stack(
    #     controls=[m, next_btn],
    #     expand=True,
    # )

    page.add(m, next_btn)


app(target=main, assets_dir="assets")