right CSS property

The right CSS property participates in specifying the horizontal position of a positioned element. This inset property has no effect on non-positioned elements.

Try it

right: 0;
right: 4em;
right: 10%;
right: 20px;
<section id="default-example">
  <div class="example-container">
    <div id="example-element">I am absolutely positioned.</div>
    <p>
      As much mud in the streets as if the waters had but newly retired from the
      face of the earth, and it would not be wonderful to meet a Megalosaurus,
      forty feet long or so, waddling like an elephantine lizard up Holborn
      Hill.
    </p>
  </div>
</section>
.example-container {
  border: 0.75em solid;
  padding: 0.75em;
  text-align: left;
  position: relative;
  width: 100%;
  min-height: 200px;
}

#example-element {
  background-color: #264653;
  border: 4px solid #ffb500;
  color: white;
  position: absolute;
  width: 140px;
  height: 60px;
}

Syntax

css
/* <length> values */
right: 3px;
right: 2.4em;
right: anchor(--my-anchor 50%);
right: anchor-size(--my-anchor height, 65px);

/* <percentage>s of the width of the containing block */
right: 10%;

/* Keyword value */
right: auto;

/* Global values */
right: inherit;
right: initial;
right: revert;
right: revert-layer;
right: unset;

Values

<length>

A negative, null, or positive <length>:

<percentage>

A <percentage> of the containing block's width.

auto

Specifies that:

Description

The effect of right depends on how the element is positioned (i.e., the value of the position property):

When both left and right are defined, if not prevented from doing so by other properties, the element will stretch to satisfy both. If the element cannot stretch to satisfy both — for example, if a width is declared — the position of the element is over-constrained. When this is the case, the left value has precedence when the container is left-to-right; the right value has precedence when the container is right-to-left.

Formal definition

Initial valueauto
Applies topositioned elements
Inheritedno
Percentagesrefer to the width of the containing block
Computed valueif specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto
Animation typea length, percentage or calc();

Formal syntax

right = 
  auto                 |
  <length-percentage>  |
  <anchor()>           |
  <anchor-size()>      

<length-percentage> = 
  <length>      |
  <percentage>  

<anchor()> = 
  anchor( <anchor-name>?                  &&
  <anchor-side> , <length-percentage>? )  

<anchor-size()> = 
  anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )  

<anchor-name> = 
  <dashed-ident>  

<anchor-side> = 
  inside        |
  outside       |
  top           |
  left          |
  right         |
  bottom        |
  start         |
  end           |
  self-start    |
  self-end      |
  <percentage>  |
  center        

<anchor-size> = 
  width        |
  height       |
  block        |
  inline       |
  self-block   |
  self-inline

Examples

undefined

Absolute and relative positioning using right

HTML

html
<div id="relative">Relatively positioned</div>
<div id="absolute">Absolutely positioned</div>

CSS

css
#relative {
  width: 100px;
  height: 100px;
  background-color: #ffc7e4;
  position: relative;
  top: 20px;
  left: 20px;
}

#absolute {
  width: 100px;
  height: 100px;
  background-color: #ffd7c2;
  position: absolute;
  bottom: 10px;
  right: 20px;
}

Result

Declaring both left and right

When both left and right are declared, the element will stretch to meet both, unless other constraints prevent it from doing so. If the element will not stretch or shrink to meet both. When the position of the element is overspecified, the precedence is based on the container's direction: The left will take precedence if the container's direction is left-to-right. The right will take precedence if the container's direction is right-to-left.

HTML

html
<div id="parent">
  Parent
  <div id="noWidth">No width</div>
  <div id="width">width: 100px</div>
</div>

CSS

css
div {
  outline: 1px solid #cccccc;
}
#parent {
  width: 200px;
  height: 200px;
  background-color: #ffc7e4;
  position: relative;
}
/* declare both a left and a right */
#width,
#noWidth {
  background-color: #c2ffd7;
  position: absolute;
  left: 0;
  right: 0;
}
/* declare a width */
#width {
  width: 100px;
  top: 60px;
}

Result

Specifications

See also