Markup: templates/output/04-elements/forms/input/search.html
<div class="flex__12 powermail_fieldwrap">
<label for="demoformid-search">Your searchword</label>
<input class="" type="search" id="demoformid-search" name="" placeholder="Enter Search Term"/>
</div>
<div class="flex__12 powermail_fieldwrap">
<label for="demoformid-search-error">Your searchword</label>
<input class="" type="search" id="demoformid-search-error" name="" placeholder="Enter Search Term"/>
<ul class="powermail-errors-list">
<li>This field is required</li>
</ul>
</div>
Source:
assets/sass/04-elements/_elements.forms.scss, line 143