The pictures in the list can't be moved to the left, I don't know why the spacing is so big

How-to
1

I’m using version 7.4.The pictures in the list can’t be moved to the left, I don’t know why the spacing is so big.I needed to add more functionality to the LIST, but it was hard to get the spacing and alignment I wanted。
屏幕截图 2020-09-11 191137

2

It’s the pad_left attribute of the button.