diff --git a/make_post_sell/static/css/common.css b/make_post_sell/static/css/common.css
index 383685b..aa4f8b8 100644
--- a/make_post_sell/static/css/common.css
+++ b/make_post_sell/static/css/common.css
@@ -468,11 +468,19 @@ div.product-images img.product-main {
 }
 
 /* Prevent content sections from overflowing */
-.product-description,
+.product-description {
+    max-width: 100%;
+    overflow-x: auto;
+    box-sizing: border-box;
+    overflow-wrap: break-word;
+}
+
+/* Use overflow-x: clip on .content so it clips without creating a scroll
+   container — overflow-x: auto breaks position: sticky for descendants */
 .content,
 section.content {
     max-width: 100%;
-    overflow-x: auto;
+    overflow-x: clip;
     box-sizing: border-box;
     overflow-wrap: break-word;
 }
@@ -1482,6 +1490,7 @@ textarea.markup-editor-textarea {
 
     .watch-left {
         grid-area: left;
+        min-width: 0;
     }
 
     /* In watch mode, child divs inside watch-left are plain block elements */
@@ -2564,6 +2573,8 @@ textarea {
     top: 0;
     z-index: 10;
     background: var(--bg-primary, #ffffff);
+    overflow: hidden;
+    max-width: 100%;
 }
 
 /* Watch video container for unmute overlay positioning */