“Width” (`wdth` in CSS) is an [axis](/glossary/axis_in_variable_fonts) found in some [variable fonts](/glossary/variable_fonts). It controls the [font](/glossary/font) file’s [width](/glossary/width) parameter.

The [Google Fonts CSS v2 API](https://developers.google.com/fonts/docs/css2) defines the axis as:

| Default: | Min: | Max: | Step: |
| --- | --- | --- | --- |
| 100 | 25 | 200 | 0.1 |

<figure>

![Two side-by-side type specimens of the word “spacious”, each shown with a variable axis represented beneath as a horizontal slider. The first specimen, with the slider most of the way to the left to represent a lower value on the axis, shows a very condensed version, taking up very little horziontal space. The second specimen, with the slider most of the way to the right to represent a higher value on the axis, is very wide.](images/thumbnail.svg)

</figure>

Width is the result of how much horizontal space is taken up by a [typeface](/glossary/typeface)’s [characters](/glossary/character). A [condensed](/glossary/condensed_narrow_compressed) face takes up considerably less space than a [wide](/glossary/wide_extended) one.

In CSS, we can assign a variable width to an element of our choosing using the `font-stretch` property. (Despite the name, note that the type is never literally “stretched” by browsers. This property name was chosen to make the concept more accessible to a general audience.)

```css
p {
  font-stretch: 50%;
}
strong {
  font-stretch: 193%;
}
```

Here, our text will be quite narrow—the type designer has set 50% as half of the regular (100%) width—and the `strong` text will be almost twice the width of the regular. Width values are always above 0, with 100% being the regular width.

In line with the current CSS spec, the four-character code for this axis should be referenced in UPPERCASE (as only the five axes registered in the OpenType format specification should appear in lowercase). Also, when using the Google Fonts API, the lowercase axes have to appear first in the URL, followed by the uppercase, each in alphabetical order.