diff --git a/src/static/css/style.css b/src/static/css/style.css
index 9a60934..dbdd55c 100644
--- a/src/static/css/style.css
+++ b/src/static/css/style.css
@@ -3935,7 +3935,8 @@ a:hover {
 
 .grid-stack-item-content .incident-analysis-summary > #summary-content,
 .grid-stack-item-content .incident-analysis-factcheck > .factcheck-list,
-.grid-stack-item-content #timeline {
+.grid-stack-item-content #timeline,
+.grid-stack-item-content #zusammenfassung-content {
     flex: 1;
     overflow-y: auto;
     overflow-x: hidden;
@@ -3946,19 +3947,23 @@ a:hover {
 
 .grid-stack-item-content .incident-analysis-summary > #summary-content::-webkit-scrollbar,
 .grid-stack-item-content .incident-analysis-factcheck > .factcheck-list::-webkit-scrollbar,
-.grid-stack-item-content #timeline::-webkit-scrollbar { width: 6px; }
+.grid-stack-item-content #timeline::-webkit-scrollbar,
+.grid-stack-item-content #zusammenfassung-content::-webkit-scrollbar { width: 6px; }
 
 .grid-stack-item-content .incident-analysis-summary > #summary-content::-webkit-scrollbar-track,
 .grid-stack-item-content .incident-analysis-factcheck > .factcheck-list::-webkit-scrollbar-track,
-.grid-stack-item-content #timeline::-webkit-scrollbar-track { background: transparent; border-radius: 3px; }
+.grid-stack-item-content #timeline::-webkit-scrollbar-track,
+.grid-stack-item-content #zusammenfassung-content::-webkit-scrollbar-track { background: transparent; border-radius: 3px; }
 
 .grid-stack-item-content .incident-analysis-summary > #summary-content::-webkit-scrollbar-thumb,
 .grid-stack-item-content .incident-analysis-factcheck > .factcheck-list::-webkit-scrollbar-thumb,
-.grid-stack-item-content #timeline::-webkit-scrollbar-thumb { background: var(--text-disabled); border-radius: 3px; }
+.grid-stack-item-content #timeline::-webkit-scrollbar-thumb,
+.grid-stack-item-content #zusammenfassung-content::-webkit-scrollbar-thumb { background: var(--text-disabled); border-radius: 3px; }
 
 .grid-stack-item-content .incident-analysis-summary > #summary-content::-webkit-scrollbar-thumb:hover,
 .grid-stack-item-content .incident-analysis-factcheck > .factcheck-list::-webkit-scrollbar-thumb:hover,
-.grid-stack-item-content #timeline::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
+.grid-stack-item-content #timeline::-webkit-scrollbar-thumb:hover,
+.grid-stack-item-content #zusammenfassung-content::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
 
 /* Quellenübersicht: Kachel wächst beim Aufklappen via resizeTileToContent */
 .grid-stack-item-content #source-overview-content {