The overflow-block CSS media feature can be used to test how the output device handles content that overflows the initial containing block along the block axis.

Syntax

The overflow-block feature is specified as a keyword value chosen from the list below.

none
Content that overflows the block axis is not displayed.
scroll
Content that overflows the block axis can be seen by scrolling to it.
optional-paged
Content that overflows the block axis can be seen by scrolling to it, but page breaks can be manually triggered (such as via break-inside, etc.) to cause the following content to display on the following page.
paged
Content is broken up into discrete pages; content that overflows one page in the block axis is displayed on the following page.

Example

HTML

<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam ac turpis eleifend, fringilla velit ac, aliquam tellus. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Nunc velit erat, tempus id rutrum sed, dapibus ut urna. Integer vehicula nibh a justo imperdiet rutrum. Nam faucibus pretium orci imperdiet sollicitudin. Nunc id facilisis dui. Proin elementum et massa et feugiat. Integer rutrum ullamcorper eleifend. Proin sit amet tincidunt risus. Sed nec augue congue eros accumsan tincidunt sed eget ex.</p>

CSS

@media (overflow-block: scroll) {
  p {
    color: red;
  }
}

Result

Specifications

Specification Status Comment
Media Queries Level 4
The definition of 'overflow-block' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No ? No1 ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? No ? No1 ? ? ?

1. See bug 1422235.

Document Tags and Contributors

Contributors to this page: ExE-Boss, fscholz, mfluehr, Sebastianz, kscarfone, RufusCSharma, cvrebert
Last updated by: ExE-Boss,