diff --git a/README.md b/README.md
index bff79f1..6fd9143 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@ AndroidSlidingDownPanel
 =======================
 SlidingDownPanel provides a vertical, multi-pane layout for user at the top level of a UI, just like the usage in [Aviate](http://getaviate.com/).
 
+![Panel up](http://i.imgur.com/yvvTYnvl.png "Panel up")
+![Panel down](http://i.imgur.com/SvrCw7nl.png "Panel slided down")
+
 Usage
 =====
 The layout could be usage as [SlidingPaneLayout]( http://developer.android.com/reference/android/support/v4/widget/SlidingPaneLayout.html). To use of the layout, simply include `com.argonware.slidingdownpanel.SlidingDownPanelLayout` as the root element for your multi pane layout. Add two children view. The first child is your main layout. The second child is your layout for the sliding down panel. 
diff --git a/library/src/com/argonware/slidingdownpanel/SlidingDownPanelLayout.java b/library/src/com/argonware/slidingdownpanel/SlidingDownPanelLayout.java
index d66a396..5f3674c 100644
--- a/library/src/com/argonware/slidingdownpanel/SlidingDownPanelLayout.java
+++ b/library/src/com/argonware/slidingdownpanel/SlidingDownPanelLayout.java
@@ -624,8 +624,8 @@ protected void onLayout(boolean changed, int l, int t, int r, int b) {
 
             if (lp.slideable) {
                 final int margin = lp.leftMargin + lp.rightMargin;
-                final int range = Math.min(nextYStart,
-                        height - paddingBottom - mOverhangSize - yStart - margin);
+                final int range = Math.max(0, Math.min(nextYStart,
+                    height - paddingBottom - mOverhangSize - yStart - margin - lp.topMargin));
                 mSlideRange = range;
                 lp.dimWhenOffset = yStart + lp.topMargin + range + childHeight / 2 >
                         height - paddingBottom;