# TallStackUI: Checkbox
> TallStackUI is a TALL Stack (Tailwind CSS, Alpine.js, Laravel, Livewire)
> component library providing 65+ Blade components for building modern web interfaces.
A checkbox input component with configurable sizes, label positioning, and color theming through the TallStackUI color system.
## Basic Usage
```blade
```
```blade
```
```blade
```
## Attributes
| Attribute | Type | Default | Description |
|------------|-----------------------------|-----------|-----------------------------------------------------------------------------|
| label | string\|ComponentSlot\|null | null | Label text displayed next to the checkbox |
| xs | string\|null | null | Sets checkbox size to extra small when present |
| sm | string\|null | null | Sets checkbox size to small when present |
| md | string\|null | null | Sets checkbox size to medium (default) when present |
| lg | string\|null | null | Sets checkbox size to large when present |
| position | string\|null | 'right' | Label position relative to the checkbox: 'left' or 'right' |
| color | string\|null | 'primary' | Color theme for the checkbox (e.g., 'primary', 'secondary', 'red', 'green') |
| invalidate | bool\|null | null | Prevents displaying validation error messages |
## Colors
This component supports the TallStackUI color system via the `color` attribute. Available colors include all Tailwind CSS color names. The color affects the checked state background of the checkbox.
## Soft Customization
Soft customization allows you to override default Tailwind CSS classes used by this component at runtime, either through a service provider or scoped per-instance.
### Customization
```php
TallStackUi::customize()
->form('checkbox')
->block('input.class', 'your-tailwind-classes');
```
### Available Blocks
| Block Name | Purpose |
|----------------|--------------------------------------------------------------------|
| input.class | Core checkbox input styles (form-checkbox, border, rounding, ring) |
| input.sizes.xs | Extra small checkbox dimensions |
| input.sizes.sm | Small checkbox dimensions |
| input.sizes.md | Medium checkbox dimensions |
| input.sizes.lg | Large checkbox dimensions |
| error | Error state border and text colors |