search form for custom post type

search.html

<form role="search" method="get" id="searchform" class="searchform" action="https://yoursite.com/">
    <div>
        <label class="screen-reader-text" for="s">Search for:</label>
        <input type="text" value="" name="s" id="s">
        <input type="hidden" value="product" name="post_type" />    
        <input type="submit" id="searchsubmit" value="Search">
    </div>
</form>

Put inside code block in the html bit.

Change line 1 to include your site URL as action
Change line 5 to include your post type as value (replace 'product')

it's the same html as normal Oxygen component puts out, just added line 5