<div class="btn-group" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Left</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Right</button></div>
<div class="btn-group" role="group" aria-label="Basic example"><button type="button" class="btn btn-outline-primary">Left</button><button type="button" class="btn btn-outline-primary">Middle</button><button type="button" class="btn btn-outline-primary">Right</button></div>
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups"><div class="btn-group mr-2 mb-2" role="group" aria-label="First group"><button type="button" class="btn btn-primary">1</button><button type="button" class="btn btn-primary">2</button><button type="button" class="btn btn-primary">3</button><button type="button" class="btn btn-primary">4</button></div><div class="btn-group mr-2 mb-2" role="group" aria-label="Second group"><button type="button" class="btn btn-primary">5</button><button type="button" class="btn btn-primary">6</button><button type="button" class="btn btn-primary">7</button></div><div class="btn-group mb-2" role="group" aria-label="Third group"><button type="button" class="btn btn-primary">8</button></div></div>
<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups"><div class="btn-group mr-2 mb-2" role="group" aria-label="First group"><button type="button" class="btn btn-outline-primary">1</button><button type="button" class="btn btn-outline-primary">2</button><button type="button" class="btn btn-outline-primary">3</button><button type="button" class="btn btn-outline-primary">4</button></div><div class="input-group mb-2"><div class="input-group-prepend"><div class="input-group-text" id="btnGroupAddon">@</div></div><input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon"></div></div>
<div class="btn-toolbar justify-content-between" role="toolbar" aria-label="Toolbar with button groups"><div class="btn-group mb-2" role="group" aria-label="First group"><button type="button" class="btn btn-outline-secondary">1</button><button type="button" class="btn btn-outline-secondary">2</button><button type="button" class="btn btn-outline-secondary">3</button><button type="button" class="btn btn-outline-secondary">4</button></div><div class="input-group mb-2"><div class="input-group-prepend"><div class="input-group-text" id="btnGroupAddon2">@</div></div><input type="text" class="form-control" placeholder="Input group example" aria-label="Input group example" aria-describedby="btnGroupAddon2"></div></div>
<div class="btn-group" role="group" aria-label="Button group with nested dropdown"><button type="button" class="btn btn-primary">1</button><button type="button" class="btn btn-primary">2</button>​<div class="btn-group" role="group"><button id="btnGroupDrop1" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button><div class="dropdown-menu" aria-labelledby="btnGroupDrop1"><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a></div></div></div>
<div class="btn-group" role="group" aria-label="Button group with nested dropdown"><button type="button" class="btn btn-outline-secondary">1</button><button type="button" class="btn btn-outline-secondary">2</button>​<div class="btn-group" role="group"><button id="btnGroupDrop2" type="button" class="btn btn-outline-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button><div class="dropdown-menu" aria-labelledby="btnGroupDrop2"><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a></div></div></div>
<div class="btn-group" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Left</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Right</button></div>
<div class="btn-group btn-group-lg" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Left</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Right</button></div>
<div class="btn-group btn-group-sm" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Left</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Right</button></div>
<div class="btn-group-vertical" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Top</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Bottom</button></div>
<div class="btn-group-vertical" role="group" aria-label="Basic example"><button type="button" class="btn btn-outline-primary">Top</button><button type="button" class="btn btn-outline-primary">Middle</button><button type="button" class="btn btn-outline-primary">Bottom</button></div>
<div class="btn-group-vertical" role="group" aria-label="Button group with nested dropdown"><button type="button" class="btn btn-primary">Button</button><button type="button" class="btn btn-primary">Button</button>​<div class="btn-group" role="group"><button id="btnGroupDrop3" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button><div class="dropdown-menu" aria-labelledby="btnGroupDrop3"><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a></div></div></div>
<div class="btn-group-vertical mb-2" role="group" aria-label="Button group with nested dropdown"><button type="button" class="btn btn-outline-secondary">Button</button><button type="button" class="btn btn-outline-secondary">Button</button>​<div class="btn-group" role="group"><button id="btnGroupDrop6" type="button" class="btn btn-outline-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Dropdown</button><div class="dropdown-menu" aria-labelledby="btnGroupDrop6"><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a><a class="dropdown-item" href="javascript:void(0)">Dropdown link</a></div></div></div>
<div class="btn-group-vertical" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Top</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Bottom</button></div>
<div class="btn-group-vertical btn-group-lg" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Top</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Bottom</button></div>
<div class="btn-group-vertical btn-group-sm" role="group" aria-label="Basic example"><button type="button" class="btn btn-primary">Top</button><button type="button" class="btn btn-primary">Middle</button><button type="button" class="btn btn-primary">Bottom</button></div>