By checking other answers, I used object-fit in CSS:
video {
object-fit: fill;
}
From MDN (https://developer.mozilla.org/en-US/docs/Web/CSS/object-fit):
The object-fit CSS property specifies how the contents of a replaced element should be fitted to the box established by its used height and width.
Value: fill
The replaced content is sized to fill the element’s content box: the object’s concrete object size is the element’s used width and height.