1 files changed, 10 insertions, 3 deletions
diff --git a/phpBB/styles/prosilver/template/forum_fn.js b/phpBB/styles/prosilver/template/forum_fn.js
index aabc5679f6..a798229b77 100644
--- a/phpBB/styles/prosilver/template/forum_fn.js
+++ b/phpBB/styles/prosilver/template/forum_fn.js
@@ -376,12 +376,19 @@ function parseDocument($container) {
 
 		function resize() {
 			var width = 0,
-				diff = $left.outerWidth(true) - $left.width();
+				diff = $left.outerWidth(true) - $left.width(),
+				minWidth = Math.max($this.width() / 3, 240),
+				maxWidth;
 
 			$right.each(function() {
-				width += $(this).outerWidth(true);
+				var $this = $(this);
+				if ($this.is(':visible')) {
+					width += $this.outerWidth(true);
+				}
 			});
-			$left.css('max-width', Math.floor($this.width() - width - diff) + 'px');
+
+			maxWidth = $this.width() - width - diff;
+			$left.css('max-width', Math.floor(Math.max(maxWidth, minWidth)) + 'px');
 		}
 
 		resize();