Test dropdown 3
by Alvin Olavarrieta
HTML
<select id='dd1' class='dropdown'>
<option>0</option>
<option>1</option>
<option>2</option>
</select>
<select id='dd2' class='dropdown'>
<option>0</option>
<option>1</option>
<option>2</option>
</select>
<select id='dd3' class='dropdown'>
<option>0</option>
<option>1</option>
<option>2</option>
</select>
<select id='dd4' class='dropdown'>
<option>0</option>
<option>1</option>
<option>2</option>
</select>
<button>CHECK</button>
JavaScript
$('button').click(function(){
$(".dropdown").css('background-color','white').filter(function(){
return this.selectedIndex > 0;
}).css('background-color','green');
});