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1.6 KiB
1.6 KiB
name, description
| name | description |
|---|---|
| preset-rem-to-px | Convert rem units to px for utilities |
Preset Rem to Px
Converts rem units to px in generated utilities.
Installation
import { defineConfig, presetRemToPx, presetWind3 } from 'unocss';
export default defineConfig({
presets: [presetWind3(), presetRemToPx()],
});
What It Does
Transforms all rem values to px:
<div class="p-4"></div>
Without preset:
.p-4 {
padding: 1rem;
}
With preset:
.p-4 {
padding: 16px;
}
Use Cases
- Projects requiring pixel-perfect designs
- Environments where rem doesn't work well
- Consistency with pixel-based design systems
- Email templates (better compatibility)
Options
presetRemToPx({
// Base font size for conversion (default: 16)
baseFontSize: 16,
});
Custom base:
presetRemToPx({
baseFontSize: 14, // 1rem = 14px
});
With Preset Wind4
Note: presetRemToPx is not needed with preset-wind4. Use the built-in processor instead:
import { createRemToPxProcessor } from '@unocss/preset-wind4/utils';
export default defineConfig({
presets: [
presetWind4({
preflights: {
theme: {
process: createRemToPxProcessor(),
},
},
}),
],
// Also apply to utilities
postprocess: [createRemToPxProcessor()],
});
Important Notes
- Order matters: place after the preset that generates rem values
- Affects all utilities with rem units
- Theme values in rem are also converted