overflow-x

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.

Summary

The overflow-x property specifies whether to clip content, render a scroll bar, or display overflow content of a block-level element, when it overflows at the left and right edges.

Initial value	`visible`
Applies to	non-replaced block-level elements and non-replaced inline-block elements
Inherited	no
Media	visual
Computed value	as specified
Animatable	no
Canonical order	the unique non-ambiguous order defined by the formal grammar

Syntax

/* Content is not clipped */
overflow-x: visible;

/* Content is clipped, with no scrollbars */
overflow-x: hidden;

/* Content is clipped, with scrollbars */
overflow-x: scroll;

/* Let the browser decide */
overflow-x: auto;

/* Global values */
overflow-x: inherit;
overflow-x: initial;
overflow-x: unset;

Values

visible: Content is not clipped, it may be rendered outside the content box.
hidden: The content is clipped and no scrollbars are provided.
scroll: The content is clipped and desktop browsers use scrollbars, whether or not any content is clipped. This avoids any problem with scrollbars appearing and disappearing in a dynamic environment. Printers may print overflowing content.
auto: Depends on the user agent. Desktop browsers like Firefox provide scrollbars if content overflows.

Formal syntax

visible | hidden | scroll | auto

Examples

HTML

<ul>
  <li><code>overflow-x:hidden</code> — hides the text outside the box
    <div id="div1">
      ABCDEFGHIJKLMOPQRSTUVWXYZABCDEFGHIJKLMOPQRSTUVWXYZ
    </div>
  </li>

  <li><code>overflow-x:scroll</code> — always add a scrollbar
    <div id="div2">
      ABCDEFGHIJKLMOPQRSTUVWXYZABCDEFGHIJKLMOPQRSTUVWXYZ
    </div>
  </li>

  <li><code>overflow-x:visible</code> — displays the text outside the box if needed
    <div id="div3">
      ABCDEFGHIJKLMOPQRSTUVWXYZABCDEFGHIJKLMOPQRSTUVWXYZ
    </div>
  </li>

  <li><code>overflow-x:auto</code> — on most browsers, equivalent to <code>scroll</code>
    <div id="div4">
      ABCDEFGHIJKLMOPQRSTUVWXYZABCDEFGHIJKLMOPQRSTUVWXYZ
    </div>
  </li>
</ul>

CSS

#div1, #div2, #div3, #div4 {
  border: 1px solid black;
  width:  250px;
  margin-bottom: 12px;
}

#div1 { overflow-x: hidden;}
#div2 { overflow-x: scroll;}
#div3 { overflow-x: visible;}
#div4 { overflow-x: auto;}

Result

Specifications

Specification	Status	Comment
CSS Overflow Module Level 3 The definition of 'overflow-x' in that specification.	Working Draft
CSS Basic Box Model The definition of 'overflow-x' in that specification.	Working Draft	Initial definition

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	1.0	3.5 (1.9.1)	5.0^[1]	9.5	3.0

Feature	Android	Chrome for Android	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	1.0	(Yes)	1.0 (1.9.1)	(Yes)	(Yes)	(Yes)

[1] Internet Explorer 8 introduced -ms-overflow-x as a synonym for overflow-x. Don't use the -ms- prefix.

overflow-x

Summary

Syntax

Values

Formal syntax

Examples

HTML

CSS

Result

Specifications

Browser compatibility

See also

文件標籤與貢獻者