diff --git a/MLEM.Ui/Elements/Element.cs b/MLEM.Ui/Elements/Element.cs
index 5445b95..2b8c92f 100644
--- a/MLEM.Ui/Elements/Element.cs
+++ b/MLEM.Ui/Elements/Element.cs
@@ -253,6 +253,12 @@ namespace MLEM.Ui.Elements {
         /// </summary>
         public bool SetWidthBasedOnChildren;
         /// <summary>
+        /// Set this field to true to cause this element's final display area to never exceed that of its <see cref="Parent"/>.
+        /// If the resulting area is too large, the size of this element is shrunk to fit the target area.
+        /// This can be useful if an element should fill the remaining area of a parent exactly.
+        /// </summary>
+        public bool PreventParentSpill;
+        /// <summary>
         /// The transparency (alpha value) that this element is rendered with.
         /// Note that, when <see cref="Draw"/> is called, this alpha value is multiplied with the <see cref="Parent"/>'s alpha value and passed down to this element's <see cref="Children"/>.
         /// </summary>
@@ -576,6 +582,17 @@ namespace MLEM.Ui.Elements {
                 }
             }
 
+            if (this.PreventParentSpill) {
+                if (pos.X < parentArea.X)
+                    pos.X = parentArea.X;
+                if (pos.Y < parentArea.Y)
+                    pos.Y = parentArea.Y;
+                if (pos.X + actualSize.X > parentArea.Right)
+                    actualSize.X = parentArea.Right - pos.X;
+                if (pos.Y + actualSize.Y > parentArea.Bottom)
+                    actualSize.Y = parentArea.Bottom - pos.Y;
+            }
+
             this.area = new RectangleF(pos, actualSize);
             this.System.OnElementAreaUpdated?.Invoke(this);
 
diff --git a/Sandbox/GameImpl.cs b/Sandbox/GameImpl.cs
index f3854a0..f6d27e4 100644
--- a/Sandbox/GameImpl.cs
+++ b/Sandbox/GameImpl.cs
@@ -149,8 +149,7 @@ namespace Sandbox {
 
             var testPanel = new Panel(Anchor.Center, new Vector2(0.5F, 100), Vector2.Zero);
             testPanel.AddChild(new Button(Anchor.AutoLeft, new Vector2(0.25F, -1)));
-            testPanel.AddChild(new Button(Anchor.AutoInline, new Vector2(0.25F, -1.5F)));
-            testPanel.AddChild(new Button(Anchor.AutoInline, new Vector2(0.5F, -1)));
+            testPanel.AddChild(new Button(Anchor.AutoLeft, new Vector2(2500, 1)) {PreventParentSpill = true});
             this.UiSystem.Add("Test", testPanel);
         }