<select name="" id="">
<option value="" selected>Choose One</option>
<option value="">...</option>
<option value="">...</option>
<option value="">...</option>
</select>
<select class="form-select" name="" id="">
<option value="" selected>Choose One</option>
<option value="">...</option>
<option value="">...</option>
<option value="">...</option>
</select>
<!-- SUCCESS -->
<select class="form-select is-valid" name="" id="">...</select>
<!-- SUCCESS WITH MESSAGE -->
<select class="form-select is-valid" name="" id="">...</select>
<div class="valid-feedback">Text</div>
<!-- ERROR WITH MESSAGE -->
<select class="form-select is-invalid" name="" id="" required>...</select>
<div class="invalid-feedback">Text</div>
Read more about this plugin on Chosen's website.
<select class="chosen-select w-100" name="" id="" data-placeholder="Choose One">
<option value="" selected></option>
<option value="">...</option>
<option value="">...</option>
<option value="">...</option>
</select>
<!-- JAVASCRIPT ---------->
<script type="text/javascript" src="/scripts/common/js/chosen-1.4.2/chosen.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#chosenID").chosen()
});
</script>