inset - CSS: Cascading Style Sheets 编辑

The inset CSS property is a shorthand that corresponds to the top, right, bottom, and/or left properties. It has the same multi-value syntax of the margin shorthand.

While part of the CSS Logical Properties specification, it does not define logical offsets. It defines physical offsets, regardless of the element's writing mode, directionality, and text orientation. 

/* <length> values */
inset: 10px; /* value applied to all edges */
inset: 4px 8px; /* top/bottom left/right */
inset: 5px 15px 10px; /* top left/right bottom */
inset: 2.4em 3em 3em 3em; /* top right bottom left */

/* <percentage>s of the width (left/right) or height (top/bottom) of the containing block */
inset: 10% 5% 5% 5%;

/* Keyword value */
inset: auto;

/* Global values */
inset: inherit;
inset: initial;
inset: unset;

Syntax

Values

The inset property takes the same values as the left property.

Formal definition

Formal syntax

<'top'>{1,4}

Examples

Setting offsets for an element

HTML

<div>
  <span class="exampleText">Example text</span>
</div>

CSS

div {
  background-color: yellow;
  width: 150px;
  height: 120px;
  position: relative;
}

.exampleText {
  writing-mode: sideways-rl;
  position: absolute;
  inset: 20px 40px 30px 10px;
  background-color: #c8c800;
}

Result

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The longhand box offset properties: top, right, bottom, and left.
• The mapped logical shorthands: inset-block and inset-inline
• The margin shorthand multi-value syntax.