diff --git a/plugins/tiddlywiki/dynaview/docs.tid b/plugins/tiddlywiki/dynaview/docs.tid
index ff569a0d2..e40fc33b3 100644
--- a/plugins/tiddlywiki/dynaview/docs.tid
+++ b/plugins/tiddlywiki/dynaview/docs.tid
@@ -27,6 +27,13 @@ The background task detects the tiddler at the top of the viewport and sets the
 
 ! Viewport Size Features
 
+!! Resize Tracking
+
+Some widgets require re-rendering or refreshing if the size of the viewport changes. This can be accomplished using "resize counting" in two steps:
+
+* Ensure that a DOM element with the class `tc-dynaview-request-refresh-on-resize` is present in the DOM to enable resize counting
+* Have the widget check for changes to the tiddler $:/state/DynaView/ViewportDimensions/ResizeCount to detect viewport resizes
+
 !! Viewport Size Tracking
 
 The background task can optionally dynamically update a pair of state tiddlers with the dimensions of the browser viewport.
diff --git a/plugins/tiddlywiki/dynaview/dynaview.js b/plugins/tiddlywiki/dynaview/dynaview.js
index 605b05516..ac9e5035a 100644
--- a/plugins/tiddlywiki/dynaview/dynaview.js
+++ b/plugins/tiddlywiki/dynaview/dynaview.js
@@ -158,10 +158,20 @@ function checkTopmost() {
 	}
 }
 
+var previousViewportWidth, previousViewportHeight;
+
 function saveViewportDimensions() {
+	var viewportWidth = window.innerWidth || document.documentElement.clientWidth,
+		viewportHeight = window.innerHeight || document.documentElement.clientHeight;
+	if(document.querySelector(".tc-dynaview-request-refresh-on-resize")) {
+		if(previousViewportWidth !== viewportWidth || previousViewportHeight !== viewportHeight) {
+			var count = parseInt($tw.wiki.getTiddlerText("$:/state/DynaView/ViewportDimensions/ResizeCount","0"),10) || 0;
+			$tw.wiki.addTiddler(new $tw.Tiddler({title: "$:/state/DynaView/ViewportDimensions/ResizeCount", text: (count + 1) + ""}));
+			previousViewportWidth = viewportWidth;
+			previousViewportHeight = viewportHeight;
+		}
+	}
 	if($tw.wiki.getTiddlerText("$:/config/DynaView/ViewportDimensions") === "yes") {
-		var viewportWidth = window.innerWidth || document.documentElement.clientWidth,
-			viewportHeight = window.innerHeight || document.documentElement.clientHeight;
 		if($tw.wiki.getTiddlerText("$:/state/DynaView/ViewportDimensions/Width") !== viewportWidth.toString()) {
 			$tw.wiki.setText("$:/state/DynaView/ViewportDimensions/Width",undefined,undefined,viewportWidth.toString(),undefined);
 		}