diff --git a/src/ui/web/css/timeline.css b/src/ui/web/css/timeline.css
index c5572adc..83d3af58 100644
--- a/src/ui/web/css/timeline.css
+++ b/src/ui/web/css/timeline.css
@@ -26,6 +26,11 @@
     font-weight: bold;
 }
 
+.message-container img {
+    max-width: 100%;
+    display: block;
+}
+
 .TextMessageView {
     display: flex;
     min-width: 0;