CSS right Property

The right property specifies the distance from the element's right outer margin to the right edge of the content block.

Initial value: auto
Applies to: Positioned elements
Inherited: No
Media: Visual
Computed value: If specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, 'auto'.
Animatable: Yes
CSS Version: CSS2, CSS3
JavaScript syntax: object.style.right

Formal syntax: auto | <length> | <percentage>

right: 20px;
right: 10%;
right: auto;

<length>Floating-point number, followed by an absolute units designator (cm, mm, in, pt, or pc) or a relative units designator (em, ex, or px).
<percentage>Integer, followed by a percent sign (%). The value is a percentage of the height of the parent object.
autoDefault position, according to the regular HTML layout of the page.

.class {
  display: block;
  position: absolute;
  top: 50px; right: 100px; bottom: 50px; left: 100px;
}