Tweak design/CSS

app/templates/lookup.html

@@ -2,12 +2,15 @@
 {% extends "layout.html" %}
 {% block content %}
 
+    <div class="box">
     <p>Interact with an ActivityPub object via its URL or look for a user using <i>@user@domain.tld</i></p>
 
     <form class="form" action="{{ url_for("get_lookup") }}" method="GET">
         <input type="text" name="query" value="{{ query if query else "" }}" autofocus>
         <input type="submit" value="Lookup">
     </form>
+    </div>
+
     {% if ap_object and ap_object.ap_type == "Person" %}
     {{ utils.display_actor(ap_object, actors_metadata) }}
     {% elif ap_object %}