Markup: templates/output/04-elements/forms/input/email.html
<div class="flex__12 powermail_fieldwrap">
<label for="demoformid-emailaddress">E-mail</label>
<input class="" type="email" name="" id="demoformid-emailaddress" placeholder="name@email.com"/>
</div>
<div class="flex__12 powermail_fieldwrap">
<label for="demoformid-emailaddress-error">E-mail</label>
<input class="" type="email" name="" id="demoformid-emailaddress-error" placeholder="name@email.com"/>
<ul class="powermail-errors-list">
<li>This field is required</li>
</ul>
</div>
Source:
assets/sass/04-elements/_elements.forms.scss
, line 131