JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<select id="my_options">
    <option value="0">Select...</option>
    <option value="1">Something</option>
    <option value="2"> Something else </option>
</select>
<div class="msg_box"></div>

JavaScript

$(function() {
    $('#my_options').change(function() {
        var str = 'You selected option ';
        switch (this.value) {
        case '1':
            str += 'one';
            break;
        case '2':
            str += 'two';
            break;
        }
        $('.msg_box').html(str);
    });
});