JSFiddle - React, Tailwind, and code Playground

by slace

HTML

<select id="selectanimage" name="selectanimage" style="width: 474px;" class="required">
    <option value="null">--- Select your Image ... ---</option>
    <option value="oneblk">125px x 125px Black Background</option>
</select>

<div id="masterPreview">
<div id="oneblk">Apple Div</div>
</div>

CSS

#oneblk { display: none; }

JavaScript

$(document).ready(function() {
    $("#selectanimage").change(function(){
        $("#masterPreview > div").hide();
        $("#" + $(this).val()).show();
    });
});