ref: 900b5f6cfe5a377ef369d26cd700201be4cf6b06
dir: /themes/gohugoioTheme/layouts/partials/site-search.html/
<form id="site-search-form" action="" role="search">
<fieldset class="bn ma0 pa0">
<label class="clip" for="email-address">Search</label>
<input type="search" id="search-input" class="needs-js bg-left bg-transparent bn f5 input-reset lh-solid mt3 mt0-ns pl4 pv2 w5 white" placeholder="Search the Docs" type="text" name="email-address" value="" style="background-image:url('/images/icon-search.png');background-size:16px 16px;">
</fieldset>
</form>