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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage 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 specification changes.

Summary

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

Initial valuevisible
Applies tonon-replaced block-level elements and non-replaced inline-block elements
Inheritedno
Mediavisual
Computed valueas specified
Animatableno
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

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

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

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

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

/* Global values */
overflow-y: inherit;
overflow-y: initial;
overflow-y: 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

Example

HTML

<ul>
  <li><code>overflow-y:hidden</code> — hides the text outside the box
  <div id="div1">
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li><code>overflow-y:scroll</code> — always add a scrollbar
  <div id="div2">
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li><code>overflow-y:visible</code> — displays the text outside the box if needed
  <div id="div3">
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>

  <li><code>overflow-y:auto</code> — on most browser, equivalent to <code>scroll</code>
  <div id="div4">
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
    </div>
  </li>
</ul>
  

CSS

#div1,
#div2,
#div3,
#div4 {
  border: 1px solid black;
  width:  250px;
  height: 100px;
}

#div1 { overflow-y: hidden; margin-bottom: 12px;}
#div2 { overflow-y: scroll; margin-bottom: 12px;}
#div3 { overflow-y: visible; margin-bottom: 120px;}
#div4 { overflow-y: auto; margin-bottom: 120px;}

Result

Specifications

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

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 1.0 1.5 (1.8) 5.0 [*] 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 (1.5) (Yes) (Yes) (Yes)

[*] IE8 introduced -ms-overflow-y as a synonym for overflow-y. Don't use the -ms- prefix.

See also

Schlagwörter des Dokuments und Mitwirkende

 Zuletzt aktualisiert von: Sebastianz,