_includes/searchbox.html

<div class="navbar-searchbox w-full bg-gray-200">
    <div class="field">
        <div class="control has-icons-right">
            <input class="input searchbox-input focus:placeholder-transparent"
                type="text" placeholder="Search the docs">
            <span class="icon is-right">
                <i class="fas fa-search searchbox-icon"></i>
            </span>
        </div>
    </div>
</div>