Oh, yeah, I got it.

special/dl_display_results.py

@@ -119,7 +119,12 @@ hr {
 
 /* setting the height of "outputs" containers */
 .outputs_dl { max-height: 400px; }
-.extension { height: 300px; }
+
+/* good use of space */
+.extension, {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+}
 
 
 /* Animation of elements */
@@ -165,7 +170,7 @@ display(HTML(CSS))
 HR = widgets.HTML('<hr>')
 
 header_widget = widgets.HTML(value='''
-<div class="header_dl">DOWNLOAD RESULTS <span style="color: grey; opacity: 0.25;">| v0.2.7</span></div>
+<div class="header_dl">DOWNLOAD RESULTS <span style="color: grey; opacity: 0.25;">| v0.2.8</span></div>
 ''')
 
 # Adding content to "outputs_widgets_list"