JSFiddle - React, Tailwind, and code Playground

HTML

<select id="dropDown">
    <option>Choose...</option>
    <option value="div1">Show Div 1</option>
    <option value="div2">Show Div 2</option>
</select>

<div  id="div1" class="drop-down-show-hide">div dasdasdasd1</div>
<div  id="div2" class="drop-down-show-hide">div asdasdasdsadsdas2</div>

CSS

#div1{
  color:black;
}

JavaScript

$('.drop-down-show-hide').hide();

$('#dropDown').change(function(){
$(this).find("option").each(function()
{
$('#' + this.value).hide();
});
    $('#' + this.value).show();

});