Bootstrap 4 button group

Example

<div class="btn-group">
    <button type="button" class="btn btn-primary">button 1</button>
    <button type="button" class="btn btn-primary">button 2</button>
    <button type="button" class="btn btn-primary">button 3</button>
</div>

Result:

Example

Button toolbar

<div class="btn-toolbar" role="toolbar" aria-label="Toolbar with button groups">
  <div class="btn-group mr-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" role="group" aria-label="Second group">
    <button type="button" class="btn btn-warning">5</button>
    <button type="button" class="btn btn-warning">6</button>
    <button type="button" class="btn btn-warning">7</button>
  </div>
  <div class="btn-group" role="group" aria-label="Third group">
    <button type="button" class="btn btn-success">8</button>
  </div>
</div>

Result:

Example

Sizing

<div class="btn-group btn-group-sm">
    <button type="button" class="btn btn-primary">button small 1</button>
    <button type="button" class="btn btn-primary">button small 2</button>
</div>
<hr>
<div class="btn-group">
    <button type="button" class="btn btn-primary">button large 1</button>
    <button type="button" class="btn btn-primary">button large 2</button>
</div>
<hr>
<div class="btn-group btn-group-lg">
    <button type="button" class="btn btn-primary">button large 1</button>
    <button type="button" class="btn btn-primary">button large 2</button>
</div>

Result:

Example

<div class="btn-group-vertical">
    <button type="button" class="btn btn-primary">button 1</button>
    <button type="button" class="btn btn-warning">button 2</button>
    <button type="button" class="btn btn-danger">button 3</button>
</div>

Result: