button

<Button>Button</Button>
<Button variant="secondary">Secondary</Button>
<Button variant="outline">Outline</Button>
<Button variant="destructive">Destructive</Button>
<Button variant="ghost">Ghost</Button>
<Button variant="link">link</Button>

<Button size="sm">sm size</Button>
<Button>md size</Button>
<Button size="lg">lg size</Button>