JSFiddle - React, Tailwind, and code Playground
HTML
<form style="border:1px solid #ccc;padding:3px;text-align:center;">
<p>Enter your email address:</p>
<p><input type="text" style="width:140px" name="email"/>
<input type="hidden" value="odnivputi" name="uri"/>
<input type="hidden" name="loc" value="ru_RU"/>
<input type="submit" value="Subscribe" /></p>
</form>