css: restore sticky subheading position: absolute

Necessary for z-indexing, actually.

Also affects hit detection for identifying which
content heading is nearest, but we'll change that
momentarily.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/static/css/site.css b/src/static/css/site.css
index 02bd3982..dd22a026 100644
--- a/src/static/css/site.css
+++ b/src/static/css/site.css
@@ -3083,6 +3083,7 @@ main.long-content .content-sticky-heading-container .content-sticky-subheading-r
 }
 
 .content-sticky-subheading-row {
+  position: absolute;
   width: 100%;
   box-sizing: border-box;
   padding: 10px 20px 5px 20px;