Something like this?
I think it should be possible by hiding the page-not-found-search
component at the bottom with a display: none
and then inserting the code for the search box at the top using plugin outlets: Adding to plugin-outlets using a theme
You could also add some CSS to modify the textarea width. Note I haven’t really tested any of this, I just tried it directly in the browser console.
This is the code for the search box:
<div class="row">
<div class="page-not-found-search-top">
<h2>Search this site</h2>
<p>
</p><form action="/search" id="discourse-search">
<input type="text" name="q" value="">
<button class="btn btn-primary">Search</button>
</form>
<p></p>
</div>
</div>