How the start position of a background image, relative to the border's container, can be set?

The background-origin CSS property sets the background's origin: from the border start, inside the border, or inside the padding.

/* Keyword values */
background-origin: border-box;
background-origin: padding-box;
background-origin: content-box;

/* Global values */
background-origin: inherit;
background-origin: initial;
background-origin: unset;

Source: https://developer.mozilla.org/en-US/docs/Web/CSS/background-origin