Docs: https://automaticcss.com/docs/is-background-is-bg/
:has(> .is-bg) {
position: relative;
isolation: isolate;
}
.is-bg {
position: var(--bg-position, absolute);
inset: var(--bg-inset, 0);
inline-size: var(--bg-width, 100%);
block-size: var(--bg-height, 100%);
border-radius: var(--bg-radius, 0);
z-index: var(--bg-z-index, -2);
}
:is(figure, picture).is-bg:has(> img) > img {
object-fit: var(--bg-object-fit, cover);
object-position: var(--bg-object-position, center);
border-radius: var(--bg-radius, 0);
}
img.is-bg {
object-fit: var(--bg-object-fit, cover);
object-position: var(--bg-object-position, center);
}