Why does the background image after setting the scale with flex still occupy the full screen at 100%?

The

code is shown below. I have proportionally set the ratio to 2 on the left and 1 on the right, but the picture still accounts for the entire screen width when the picture width is set to 100%, as shown in figure 2. And I wrote the code exactly according to the template code. I don"t know why the template can display
clipboard.png

clipboard.png

clipboard.png

normally.
Mar.04,2021

I tapped here as you did, and it was OK (except that the picture path was changed to my own

.

    
    </div>
</div>

</body>
</html>
Menu