JSFiddle - React, Tailwind, and code Playground
by Sambora
HTML
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<div class="col-md-6"></div>
<div class="col-md-6">
<script src='https://www.google.com/recaptcha/api.js'></script>
<form id="myform" name="myform" role="form" action="<?PHP echo SITE.'controller/contact.php'; ?>">
<div class="form-group">
<label for="name">نام:</label>
<input name="name" type="text" class="form-control" id="name">
</div>
<div class="form-group">
<label for="email">رایانامه:</label>
<input name="email" type="email" class="form-control" id="email">
</div>
<div class="form-group">
<label for="message" class="control-label">متن پیغام</label>
<textarea name="message" class="form-control" id="message" cols="15" rows="6"></textarea>
</div>
<div class="form-group">
<div class="col-md-12">
<div class="g-recaptcha" data-theme="light" data-sitekey="6LdKhQ0TAAAAADUoa0UDFRMGR1SpRsvbPosE7t67" style="transform:scale(0.77);-webkit-transform:scale(0.77);transform-origin:0 0;-webkit-transform-origin:0 0;"></div>
</div>
<div class="col-md-12">
<button name="submit" class="btn btn-primary post-comments">تایید و ارسال</button>
</div>
</div>
<input type="hidden" name="csrf_token" value="<?php echo $token; ?>">
</form>
</div>
CSS
.g-recaptcha{
margin:0 auto;
}