{namespace sg = TYPO3\CMS\Styleguide\ViewHelpers}

Form Button

<a class="btn btn-default">Default button</a>
<button class="btn btn-default">Button</button>
<input type="button" class="btn btn-default" value="Input button" />
<input type="submit" class="btn btn-default" value="Submit button" />

Button Types

<a class="btn btn-default">Default button</a>
<a class="btn btn-primary">Primary button</a>
<a class="btn btn-success">Success button</a>
<a class="btn btn-warning">Warning button</a>
<a class="btn btn-danger">Danger button</a>
<a class="btn btn-link">Link button</a>

Buttons with icons

<a class="btn btn-default">Default button</a>
<a class="btn btn-primary">Primary button</a>
<a class="btn btn-success">Success button</a>
<a class="btn btn-warning">Warning button</a>
<a class="btn btn-danger">Danger button</a>
<a class="btn btn-link">Link button</a>

Disabled buttons

<a class="btn btn-default disabled">Default button</a>
<a class="btn btn-primary disabled">Primary button</a>
<a class="btn btn-success disabled">Success button</a>
<a class="btn btn-warning disabled">Warning button</a>
<a class="btn btn-danger disabled">Danger button</a>
<a class="btn btn-link disabled">Link button</a>