Some unreasonable aspects of the V6 style still need further optimization

[uubbbb]

Hello, some unreasonable aspects of the V6 style.

1. The picture is not centered up and down, which is very uncomfortable to look at

The picture in V5 is centered up and down

2. The left and right buttons are too close to the middle, and there is a black background, which affects the appearance of the picture.

3. When there is a toolbar at the top, the left and right buttons will be located above the picture.

The same is not the case in V5.