JSFiddle - React, Tailwind, and code Playground

HTML

<div class="form-field string optional request_custom_fields_21158635">
  <label for="request_custom_fields_21158635">iOS Plugin Details</label>
  <input id="request_custom_fields_21158635" type="text" name="request[custom_fields][21158635]">
  <p>Please provide the iOS Plugin version details for your request. Example: iOS GA5.0.38</p>
</div>

JavaScript

$(function(){
$(".form-field.string.optional.request_custom_fields_21158635").hide();

});