# CSS: “text-autospace”: X is not a “text-autospace” value.

> Canonical HTML version: https://rocketvalidator.com/html-validation/css-text-autospace-x-is-not-a-text-autospace-value
> Attribution: Rocket Validator (https://rocketvalidator.com)
> License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

The `text-autospace` declaration uses a value the CSS standard does not define, most often `none`, which the standard calls `no-autospace`.

`text-autospace` controls the extra space a browser adds where Chinese, Japanese or Korean (CJK) characters meet Latin letters or digits. CSS Text Module Level 4 accepts `normal`, `auto`, `no-autospace`, or a combination of `ideograph-alpha`, `ideograph-numeric` and `punctuation`, optionally followed by `insert` or `replace`. The validator rejects any other value.

The `none` value usually comes from Microsoft Word, which writes `text-autospace: none` into the inline styles of the text it exports or copies. The declaration survives when that text is pasted into a CMS editor. It is a leftover from Internet Explorer's version of the property, whose `ideograph-parenthesis` and `ideograph-space` values are not standard either.

Browsers drop a declaration with an unknown value, so `text-autospace: none` has no effect and you can delete it without changing how the page looks. If the text mixes CJK and Latin characters and you want the spacing turned off, write `no-autospace` instead.

## Invalid example

```html
<p style="text-autospace: none;">Annual report 2026</p>
```

## Valid example

Delete the declaration:

```html
<p>Annual report 2026</p>
```

Or, to keep the spacing off in CJK text, use the standard keyword:

```html
<p lang="ja" style="text-autospace: no-autospace;">HTML5とCSS3の基本</p>
```