stackoverflow . 42730467

by Daw-Chih Liou

HTML

<select>
  <option value="option-1">option 1</option>
  <option value="option-2">option 2</option>
  <option value="option-3">option 3</option>
  <option value="option-4">option 4</option>
</select>
<button>Focus on the Select!</button>

CSS

html {
  font-family: Arial, Helvetica, sans-serif;
}
select, button {
  margin-right: 1em;
  min-width: 8em;
  height: 3em;
}

JavaScript

var $select = $('select');
var $button = $('button');

$button.on('click', function (){
	$select.focus();
});