JSFiddle - React, Tailwind, and code Playground

HTML

<select>
    <option>tesgfhdfghdfht</option>
    <option>test2</option>
    <option>test3lskdjflksddfhg</option>
</select>
<span id='texttest'></span>

CSS

#texttest{
    visibility:hidden;
}

JavaScript

$('option').each(function(){
    $('#texttest').html($(this).text());
    while($('#texttest').width()<$('select').width()){
        $('#texttest').html('&nbsp'+$('#texttest').text()+'&nbsp');
    }
    $(this).html($('#texttest').text());
});