diff --git a/www/conservancy/static/css/conservancy.css b/www/conservancy/static/css/conservancy.css
index 6a936f6cf7cac42c603f1488a098cd484ee76d11..64998248eb325f2565a83e64ceb3400aeda416df 100644
--- a/www/conservancy/static/css/conservancy.css
+++ b/www/conservancy/static/css/conservancy.css
@@ -131,17 +131,14 @@ text-decoration: none; color: #557733;
 /* FIXME: We should do this:          */
 /* http://www.waypointarts.com/blog/2013/06/29/fixing-a-side-bar-while-scrolling-until-bottom */
 .donate-sidebar {
-    position: fixed;
-    top: 180px;
-    right: 2%;
-    width: 18%;
-}
-@media all and (max-width: 725px) {
-    .donate-sidebar { display: none; }
-    .content-with-donate-sidebar {
-        align: center;
-        width: 100%;
-    }
+  background: var(--light-green) no-repeat;
+  position: sticky;
+  bottom: 0;
+  width: auto;
+  padding: 0.5rem 1rem;
+  margin: 2rem -1rem 0;
+  border-radius: 8px 8px 0 0;
+  border: 1px solid #90d468;
 }
 
 p.footnote {
@@ -279,10 +276,6 @@ body > header {
   margin-left: .5rem;
 }
 
-
-#mainContent {
-  overflow: auto;
-}
 #sidebar + #mainContent {
     float: left;
 }
@@ -328,11 +321,6 @@ body > header {
     text-align: center;
 }
 
-.content-with-donate-sidebar {
-    align: left;
-    width: 80%;
-}
-
 #container #mainContent {
     max-width: 50em;
     margin: 0;