Word.ws English Dictionary

flexbox

flexbox noun: a CSS3 layout model that allows elements on a web page to be arranged in certain ways within a one-dimensional container.

Noun

flexbox (countable and uncountable, plural flexboxes)

  1. (uncountable, web development) A CSS3 layout model that allows elements on a web page to be arranged in certain ways within a one-dimensional container.
    • Internet Explorer 9 does not support flexbox.
  2. (countable, web development) An HTML element that uses this model.
    • The contents of a flexbox can be positioned in any direction, can have their order swapped dynamically, and can auto-adjust their sizes and positions based on available space.2012, Sergey Mavrody, Nika Mavrody, Sergey's HTML5 & CSS3: Quick Reference, page 112
    • There's still quite a bit of tumult in the standards recommendations and implementations for flexboxes, but IE10 and Windows 8 has a good, solid implementation of this extremely helpful layout technique.2013, Jeremy Foster, CSS for Windows 8 App Development, page 161

Forms of flexbox

pluralflexboxes
alternative formflex box
alternative formflex-box

Origin of flexbox

Shortening of flexible box.

Questions about flexbox

What does flexbox mean?
Flexbox means a CSS3 layout model that allows elements on a web page to be arranged in certain ways within a one-dimensional container.
What part of speech is flexbox?
Flexbox is a noun.
What is the plural of flexbox?
The plural of flexbox is flexboxes.

Words near flexbox in the dictionary

  1. flexatones
  2. flexatube
  3. flexatubes
  4. flexbone
  5. flexbones
  6. flexbox
  7. flexboxes
  8. flexcation
  9. flexdollar
  10. flexdollars
  11. flexecutive

Source and license

Adapted from Wiktionary: flexbox (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “flexbox.” Word.ws, https://word.ws/flexbox. Based on Wiktionary, CC BY-SA 4.0.