JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-multiselect/0.9.13/css/bootstrap-multiselect.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-multiselect/0.9.13/js/bootstrap-multiselect.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="form-group">
   
    <div class="col-md-4">
        <select id="test" class="multiselect-ui form-control" multiple="multiple">
            <option value="cheese">Cheese</option>
            <option value="tomatoes">Tomatoes</option>
            <option value="mozarella">Mozzarella</option>
            <option value="mushrooms">Mushrooms</option>
            <option value="pepperoni">Pepperoni</option>
            <option value="onions">Onions</option>
            <option value="mozarella1">Mozzarella</option>
            <option value="mushrooms1">Mushrooms</option>
            <option value="2pepperoni">Pepperoni</option>
            <option value="3onions">Onions</option>
        </select>
    </div>
</div>

CSS

.btn-block {width : auto !important;}

JavaScript

$('#test').multiselect({
    includeSelectAllOption: true,
    maxHeight: 150,
    buttonWidth: 'auto',
    numberDisplayed: 2,
    nSelectedText: 'selected',
    nonSelectedText: 'None selected',
    buttonText: function(options, select) {
        var numberOfOptions = $(this).children('option').length;
        if (options.length === 0) {
            return this.nonSelectedText + '';
        } else {
            var selected = '';
            options.each(function() {
                var label = ($(this).attr('label') !== undefined) ?
                    $(this).attr('label') : $(this).html();
                selected += label + ', ';
            });
            return selected.substr(0, selected.length - 2) + '';

        }
    }
});