JSFiddle - React, Tailwind, and code Playground
HTML
<div class="form-group ">
<label class="control-label" for="dropdown">
What can we help you with?
</label>
<select class="select form-control" id="dropdown" name="dropdown" onchange="showForm()">
<option value="0" disabled selected>
Select an option
</option>
<option value="1">
Sales
</option>
<option value="2">
Complaints
</option>
<option value="3">
Queries
</option>
<option value="4">
Ideas
</option>
</select>
</div>