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overflow-clip-box

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

Summary

The overflow-clip-box CSS property specifies relative to which box the clipping happens when there is an overflow.

On Gecko, by default, padding-box is used everywhere, but <input type="text"> and similar use the value content-box. Prior to Firefox 29, this behavior was hardcoded; since then it uses this property that can be used elsewhere too. Note that this property is activated by default only in the UA stylesheet and chrome contexts.

Initial valuepadding-box
Applies toall elements
Inheritedno
Mediavisual
Computed valueas specified
Animatableno
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

/* Keyword values */
overflow-clip-box: padding-box;
overflow-clip-box: content-box;

/* Global values */
overflow-clip-box: inherited;
overflow-clip-box: initial;
overflow-clip-box: unset;

Values

padding-box
This keyword makes the clipping be related to the padding box.
content-box
This keyword makes the clipping be related to the content box.

Formal syntax

padding-box | content-box

Examples

padding-box

<div class="things">
  <input value="ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖ" class="scroll padding-box">
  <div class="scroll padding-box"><span>ABCDEFGHIJKLMNOPQRSTUVWXYZÅÄÖ</span></div>
</div>
.scroll { 
  overflow: auto;
  padding: 0 30px; 
  width: 6em; 
  border: 1px solid black;
  background: lime content-box;
}
.padding-box {
  overflow-clip-box: padding-box;
} 
function scrollSomeElements() {
  var elms = document.querySelectorAll('.scroll');
  for (i=0; i < elms.length; ++i) {
    elms[i].scrollLeft=80;
  }
}
var elt = document.queryElementsByTagName('body')[0];

elt.addEventListener("load", scrollSomeElements, false);

Specifications

This property has been proposed to the W3C CSSWG; it is not yet on the standard track but, if accepted, should appear in CSS Overflow Module Level 3.

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari (WebKit)
Basic support 29.0 (29.0)[1] No support No support No support No support
Feature Firefox Mobile (Gecko) Android IE Phone Opera Mobile Safari Mobile
Basic support 29.0 (29.0)[1] No support No support No support No support

[1] This property is controlled by the layout.css.overflow-clip-box.enabled preference, which defaults to false. It only is activated inside UA stylesheets and the chrome context. See bug 966992.

See also

Document Tags and Contributors

 Contributors to this page: Sebastianz, teoli, Fredchat, ziyunfei, yisi
 Last updated by: Sebastianz,