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71 lines
1.7 KiB
Markdown
71 lines
1.7 KiB
Markdown
---
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title: CSS Variables in Bulma
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layout: docs
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markdown: true
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theme: features
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doc-tab: features
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doc-subtab: css-variables
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breadcrumb:
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- home
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- documentation
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- features
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- features-css-variables
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---
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All Bulma components are styled using **CSS Variables** (which are also called CSS custom properties). [Read more about them on the MDN Reference](https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties).
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For example, here is how the `.title` element is styled:
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```css
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.title {
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color: var(--bulma-title-color);
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font-size: var(--bulma-title-size);
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font-weight: var(--bulma-title-weight);
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line-height: var(--bulma-title-line-height);
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}
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```
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## Scope
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Bulma CSS variables are either defined:
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- at the **global** scope `:root`
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- at the **component** scope, like `.button`
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CSS Variables defined at a more specific scope (like `.button`) will override the ones defined at a more global scope.
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```css
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:root {
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/* Default global value */
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--bulma-size-medium: 1.25rem;
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}
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.button {
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/* Overrides the global value */
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--bulma-size-medium: 1.5rem;
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}
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```
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## Prefix
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All Bulma CSS variables are prefixed with `bulma-` (including the dash). You will notice theme when inspecting a webpage:
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<img src="/assets/images/content-inspect.png" alt="Inspect CSS variables" width="640" height="340">
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This prefix can be changed by setting the `$cssvars-prefix` Sass variable:
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```scss
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@use "bulma/sass" with (
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$cssvars-prefix: "my-prefix-"
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);
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```
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## Themes
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The global CSS variables defined at the `:root` level are what defines a **Bulma theme**. Think of a theme as simply a collection of CSS variables.
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<p>
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<a href="{{ site.url }}/documentation/features/themes/">
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Read more about Themes
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</a>
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</p> |