bootstrap-tagsinput/dist/bootstrap-tagsinput.css code example
Example 1: bootstrap input tagsinput
<select multiple data-role="tagsinput">
<option value="Amsterdam">Amsterdam</option>
<option value="Washington">Washington</option>
<option value="Sydney">Sydney</option>
<option value="Beijing">Beijing</option>
<option value="Cairo">Cairo</option>
</select>
Example 2: boostrap input tag
<input class="form-control form-control-lg" type="text" placeholder=".form-control-lg">
<input class="form-control" type="text" placeholder="Default input">
<input class="form-control form-control-sm" type="text" placeholder=".form-control-sm">