diff -r f5eca01f0a1d -r 5b3285e47b62 src/pyams_content/zmi/resources/less/pyams_content.less
--- a/src/pyams_content/zmi/resources/less/pyams_content.less	Mon Feb 01 13:31:22 2021 +0100
+++ b/src/pyams_content/zmi/resources/less/pyams_content.less	Mon Feb 01 13:32:29 2021 +0100
@@ -1,42 +1,19 @@
 .ams-widget.comments {
 
+	margin-bottom: 0;
+
 	.widget-body {
-		position: fixed;
-		height: ~"calc(100% - 337px)";
+		display: flex;
+		flex-direction: column;
 
 		.chat-body {
-			position: relative;
-			height: 100%;
+			flex-grow: 1;
+			max-height: ~"calc(100vh - 385px)";
+			overflow-y: auto;
 		}
 
 		.chat-footer {
-			position: fixed;
-			bottom: 10px;
-		}
-
-		&,
-		.chat-footer {
-			width: ~"calc(100% - 240px)";
-
-			@media (max-width: 767px) {
-				width: ~"calc(100% - 10px)";
-			}
-			@media (min-width: 768px) and (max-width: 979px) {
-				width: ~"calc(100% - 20px)";
-			}
-
-			.minified & {
-				width: ~"calc(100% - 65px)";
-
-				@media (max-width: 767px) {
-					& {
-						width: ~"calc(100% - 55px)";
-					}
-				}
-			}
-			.hidden-menu & {
-				width: ~"calc(100% - 30px)";
-			}
+			flex-grow: 0;
 		}
 	}
 }