Add experiment to show per-forum activity in profiles

This is an experiment for now, since there might be performance
improvements and UI changes in the future.

Bug: twpowertools:92
Change-Id: Ief2a423d41a6b7179bb935c7a2a246678a4a4d0a
diff --git a/src/static/css/extrainfo.css b/src/static/css/extrainfo.css
index a0c15e2..0767ee2 100644
--- a/src/static/css/extrainfo.css
+++ b/src/static/css/extrainfo.css
@@ -106,3 +106,18 @@
 ec-canned-response-row .TWPT-content span[aria-describedby] {
   cursor: help;
 }
+
+/* Per-forum stats section */
+.TWPT-scTailwindSharedActivitychartroot .scTailwindSharedActivitychartchart {
+  margin-top: 18px;
+}
+
+.TWPT-scTailwindSharedActivitychartroot .TWPT-select-container {
+  position: absolute;
+  top: 48px;
+  z-index: 2;
+}
+
+.TWPT-scTailwindSharedActivitychartroot .TWPT-select-container select {
+  max-width: 300px;
+}