To use CSS attributes to control variable font styles, you need to master four core methods. 1. Use font-weight to set the numerical values ??from 1 to 1000 to finely control the word weight, such as p { font-weight: 450; }; 2. Use font-stretch to adjust the font width in percentage, such as .title { font-stretch: 110%; }; 3. Use font-style to combine font-variation-settings to achieve tilt or custom axis adjustment, such as .emphasis { font-variation-settings: "slnt" 20; }; 4. Combine multi-axis parameters to optimize visual effects, such as .custom-style to set the word weight, width and custom axis at the same time, but it is necessary to avoid affecting readability. These properties provide a high level of control over variable fonts and are suitable for different design needs.
Using CSS attributes to control the style of variable fonts is actually not complicated. The key is to understand several core attributes and their relationship. Variable Fonts are more flexible than traditional fonts. They can achieve multiple changes in word weight, width, tilt, etc. with just one font file, but how to truly "use" it well in a web page still depends on some specific CSS attributes.

1. Use font-weight
to control the font thickness range
While you may already be familiar with font-weight
, it works more granularly in variable fonts. You can use values ??from 1 to 1000 to define word weights, not just normal
or bold
.

for example:
p { font-weight: 450; } h1 { font-weight: 780; }
This allows for more detailed adjustment of thickness and makes the design look more natural. Some fonts even support continuous transitions, which means you can change the font weight dynamically through animation or interaction.

2. Set font-stretch
to achieve font width adjustment
font-stretch
allows you to stretch or compress the width of a font, usually expressed in percentages, such as 50%
to 200%
. This property is ideal for optimizing the typography space, especially in responsive layouts.
Example:
.title { font-stretch: 110%; } .narrow-text { font-stretch: 85%; }
Note: Not all fonts support a complete font-stretch
range, it is best to check the font document before use.
3. Use font-style
and font-variation-settings
to implement tilt and custom axis
In addition to the common italic
, some variable fonts also support custom italic angles or other style variations. At this time, font-variation-settings
is needed.
For example:
.emphasis { font-style: italic; font-variation-settings: "slnt" 20; }
Here "slnt"
is the identifier of the slope axis, and the larger the value, the more tilted the font. Of course, other custom axes can also be controlled, such as "opsz"
(optical size), "wdth"
(width), etc.
However, it should be noted that font-variation-settings
is more like a "understanding API" and is suitable for high-end customization. If you just want to simply set italics or thickness, it is recommended to use standard attributes first.
4. Use multiple axes in combination to get the best results
One of the charms of variable fonts is multi-axis linkage. You can adjust multiple parameters such as word weight, width, slope, etc. at the same time to obtain a richer visual level.
for example:
.custom-style { font-weight: 600; font-stretch: 90%; font-variation-settings: "slnt" 10, "opsz" 14; }
This approach is suitable for scenarios where a highly customized font style is required, such as title or brand copywriting. But be careful not to over-adjust to avoid affecting readability.
Overall, CSS provides tools that are powerful enough to control the performance of variable fonts. As long as you understand the role of each attribute and use it reasonably in combination with actual needs, you can easily give full play to the advantages of variable fonts. Basically all that is, it's not difficult but there are a lot of details.
The above is the detailed content of Styling Variable Fonts using CSS properties. For more information, please follow other related articles on the PHP Chinese website!

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