JSFiddle - React, Tailwind, and code Playground

HTML

<form action="">

<fieldset>
<legend>Nosso form</legend>

<label><span>Nome:</span>
<input type="text" size="25" /></label>

<label><span>Idade:</span>
<input type="text" size="25" /></label>

<label><span>Besteiras:</span>
<textarea rows="10" cols="23"></textarea></label>

<label><span>Nome de novo:</span>
<input type="text" size="25" /></label>

<div><input type="submit" class="submit" 
            name="submit" value="Enviar" /></div>

</fieldset>
</form>

CSS

fieldset span { float: left; width: 6em; text-align: right; }
label { display: block; margin: 0; padding: 0;}
input, textarea { text-align: left; }
input.submit    { text-align: center; }