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Adding shadow docs to storybook (#15388)
Co-authored-by: Brad Decker <bhdecker84@gmail.com>
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George Marshall
GitHub
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.storybook/4.SHADOW.stories.mdx
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.storybook/4.SHADOW.stories.mdx
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import { Meta, Canvas, Story } from '@storybook/addon-docs';
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<Meta title="Foundations / Shadow" />
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# Shadow
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Shadows convey elevation of elements on a surface
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## Size
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There are 4 different sizes of shadow in MetaMask
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<div
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style={{
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display: 'grid',
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gap: '32px',
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gridTemplateColumns: 'repeat(auto-fill, 200px)',
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marginTop: 16,
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marginBottom: 16,
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}}
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>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-background-default)',
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boxShadow: 'var(--shadow-size-xs) var(--color-shadow-default',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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}}
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>
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XS
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</div>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-background-default)',
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boxShadow: 'var(--shadow-size-sm) var(--color-shadow-default',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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}}
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>
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SM
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</div>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-background-default)',
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boxShadow: 'var(--shadow-size-md) var(--color-shadow-default',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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}}
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>
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MD
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</div>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-background-default)',
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boxShadow: 'var(--shadow-size-lg) var(--color-shadow-default',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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}}
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>
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LG
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</div>
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</div>
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| Size | CSS |
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| ------ | ----------------------- |
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| **XS** | `var(--shadow-size-xs)` |
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| **SM** | `var(--shadow-size-sm)` |
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| **MD** | `var(--shadow-size-md)` |
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| **LG** | `var(--shadow-size-lg)` |
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## Color
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As well as the neutral colors for shadow 2 other colors exist that are used for the primary and error/danger button hover states
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<div
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style={{
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display: 'grid',
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gap: '32px',
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gridTemplateColumns: 'repeat(auto-fill, 200px)',
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marginTop: 16,
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marginBottom: 16,
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}}
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>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-background-default)',
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boxShadow: 'var(--shadow-size-lg) var(--color-shadow-default',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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}}
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color="default"
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>
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<span>Default</span>
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</div>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-primary-default)',
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boxShadow: 'var(--shadow-size-lg) var(--color-primary-shadow',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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color: 'var(--color-primary-inverse)',
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}}
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>
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<span>Primary</span>
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</div>
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<div
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style={{
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height: 100,
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backgroundColor: 'var(--color-error-default)',
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boxShadow: 'var(--shadow-size-lg) var(--color-error-shadow',
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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color: 'var(--color-error-inverse)',
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}}
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>
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<span>Error/Danger</span>
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</div>
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</div>
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| Color | CSS |
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| ----------- | ----------------------------- |
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| **neutral** | `var(--color-shadow-default)` |
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| **primary** | `var(--color-primary-shadow)` |
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| **danger** | `var(--color-error-shadow)` |
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## Example usage
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Using both size and color tokens, different shadows can be applied to components
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<div>
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<div
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style={{
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display: 'grid',
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gap: '32px',
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gridTemplateColumns: 'repeat(auto-fill, 200px)',
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marginBottom: '64px',
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}}
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>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--shadow-size-xs) var(--color-shadow-default)',
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}}
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>
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<span>Card</span>
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</div>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--shadow-size-sm) var(--color-shadow-default)',
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}}
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>
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<span>Dropdown</span>
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</div>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--shadow-size-md) var(--color-shadow-default)',
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}}
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>
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<span>Toast</span>
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</div>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--shadow-size-lg) var(--color-shadow-default)',
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}}
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>
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<span>Modal</span>
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</div>
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</div>
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<div
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style={{
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display: 'grid',
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gap: '32px',
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gridTemplateColumns: 'repeat(auto-fill, 200px)',
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}}
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>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--component-button-primary-shadow)',
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backgroundColor: 'var(--color-primary-default)',
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color: 'var(--color-primary-inverse)',
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}}
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>
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<span>Button Primary Hover</span>
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</div>
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<div
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style={{
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borderRadius: '4px',
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display: 'grid',
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alignContent: 'center',
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justifyContent: 'center',
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spanAlign: 'center',
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height: 100,
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textAlign: 'center',
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boxShadow: 'var(--component-button-danger-shadow)',
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backgroundColor: 'var(--color-error-default)',
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color: 'var(--color-error-inverse)',
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}}
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>
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<span>Button Error/Danger Hover</span>
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</div>
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</div>
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</div>
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| Component | JS | CSS |
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| ------------------------ | ---------------------------------------------------------------- | --- |
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| **Card** | `box-shadow: var(--shadow-size-xs) var(--color-shadow-default);` |
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| **Dropdown** | `box-shadow: var(--shadow-size-sm) var(--color-shadow-default);` |
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| **Toast** | `box-shadow: var(--shadow-size-md) var(--color-shadow-default);` |
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| **Modal** | `box-shadow: var(--shadow-size-lg) var(--color-shadow-default);` |
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| **Button Primary Hover** | `box-shadow: var(--shadow-size-sm) var(--color-primary-shadow);` |
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| **Button Danger Hover** | `box-shadow: var(--shadow-size-sm) var(--color-error-shadow);` |
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## Takeaways
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- Try to avoid using static media queries in your code
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- Try to use the provided SCSS mixins
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### ❌ Don't do this
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Don't use static media queries in your code
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```css
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/**
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* Don't do this
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* Static box-shadows create inconsistency in elevation of elements
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**/
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.card {
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box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.2);
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}
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```
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### ✅ Do this
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Do use the provided shadow design token css variables
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```css
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.card {
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box-shadow: var(--shadow-size-xs) var(--color-shadow-default);
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}
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```
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## References
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- [Shadow design tokens](https://metamask.github.io/design-tokens/?path=/docs/shadows-shadows--shadow)
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- [Figma light theme colors library(shadows page)](https://www.figma.com/file/kdFzEC7xzSNw7cXteqgzDW/%5BColor%5D-Light-Theme?node-id=753%3A719)(internal use only)
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- [Figma dark theme colors library(shadows page)](https://www.figma.com/file/rLKsoqpjyoKauYnFDcBIbO/%5BColor%5D-Dark-Theme?node-id=522%3A1022)(internal use only)
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@ -31,6 +31,7 @@ addParameters({
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order: [
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'Getting Started',
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'Foundations',
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['Color', 'Shadow', 'Breakpoints'],
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'Components',
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['UI', 'App'],
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'Pages',
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