JSFiddle - React, Tailwind, and code Playground

by satantx

HTML

<select multiple>
  <option>1</option>
  <option>2</option>
  <option>3</option>
  <option>4</option>
  <option>5</option>
</select>

<button>Нажать нежно</button>

CSS

select {
    width:100px;
    height:50px;
}

JavaScript

$('button').click(function(){
    $('select option').attr('selected','selected');
});