diff --git a/code/portal_detail_display.js b/code/portal_detail_display.js
index fdcd4572..e78d662f 100644
--- a/code/portal_detail_display.js
+++ b/code/portal_detail_display.js
@@ -18,7 +18,8 @@ window.renderPortalDetails = function(guid) {
   if(d.portalV2.linkedEdges) $.each(d.portalV2.linkedEdges, function(ind, link) {
     links[link.isOrigin ? 'outgoing' : 'incoming']++;
   });
-  var linksText = 'links: ↳ ' + links.incoming+'  •  '+links.outgoing+' ↴';
+  function linkExpl(t) { return '<tt title="↳ incoming links\n↴ outgoing links\n• is meant to be the portal.">'+t+'</tt>'; }
+  var linksText = linkExpl('links')+':'+linkExpl(' ↳ ' + links.incoming+'&nbsp;&nbsp;•&nbsp;&nbsp;'+links.outgoing+' ↴');
 
   var player = d.captured && d.captured.capturingPlayerId
     ? getPlayerName(d.captured.capturingPlayerId)
diff --git a/style.css b/style.css
index 35e9ee8c..461109db 100644
--- a/style.css
+++ b/style.css
@@ -399,6 +399,11 @@ aside:nth-child(odd) span {
   text-align: right;
 }
 
+#randdetails tt {
+  font-family: inherit;
+  cursor: help;
+}
+
 
 /* resonators */
 #resodetails {