CSS Position:-
The position property defines how an element will be positioned on a web page.

Static Positioning
A static positioned element is always positioned according to the normal flow of the web page. The static positioned elements are not affected by the left, top, right, bottom, and z-index properties.

Example:-

.static-box {
  padding: 20px;
  background: #7dc765;
}

HTML elements are positioned static by default. So declaration is not required for position static.