JSFiddle - React, Tailwind, and code Playground
HTML
<select name="contact" id="contact">
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
<option value="">Select Contact</option>
</select>
JavaScript
var $j = jQuery.noConflict();
$j('#contact').click( function(){
clearSelect(this,'contact')
});
function clearSelect(thisfield, id) {
$j("#" + id).children().andSelf().css({"background-color":"blue",
"border":"1px solid #CCCCCC",
"color":"#000000"});
}