Why does docker keep pushing the same file?

Question

Docker

There is a .bin file and docker pushes and pulls it every time, although it does not change. Maybe I don't understand

Answer 1

background:
    linear-gradient(135deg, transparent, rgba(255,255,255,.1)),
    linear-gradient(to top, #999,  transparent),
    linear-gradient(to left, #999, transparent);
background-repeat: no-repeat;
background-position: top left, top right, bottom right;
background-size: 100% 100%, 1px 100%, 100% 1px;

code pen

Answer 2

Slanted gradient + before and after lines on the sides filled with gradient