diff --git a/src/_h5ai/public/css/lib/ext/info.less b/src/_h5ai/public/css/lib/ext/info.less
index d21e3870..0f141dad 100644
--- a/src/_h5ai/public/css/lib/ext/info.less
+++ b/src/_h5ai/public/css/lib/ext/info.less
@@ -3,8 +3,7 @@
     flex: 0 0 auto;
     order: 99;
 
-    padding: 16px;
-    border-left: 1px solid @col-border;
+    padding: 16px 16px 16px 48px;
     white-space: nowrap;
     overflow-x: hidden;
     width: 240px;
diff --git a/src/_h5ai/public/css/lib/ext/tree.less b/src/_h5ai/public/css/lib/ext/tree.less
index 57d45480..e5aeee3e 100644
--- a/src/_h5ai/public/css/lib/ext/tree.less
+++ b/src/_h5ai/public/css/lib/ext/tree.less
@@ -3,9 +3,7 @@
     flex: 0 0 auto;
     order: 1;
 
-    padding: 16px 16px 16px 8px;
-    background: @col-back-panel;
-    border-right: 1px solid @col-border;
+    padding: 16px 48px 16px 8px;
     white-space: nowrap;
     max-width: 250px;
     overflow-x: hidden;