diff --git a/src/layout/axis.rs b/src/layout/axis.rs
index ff66ffc..1178b69 100644
--- a/src/layout/axis.rs
+++ b/src/layout/axis.rs
@@ -8,6 +8,14 @@ pub enum Exact<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
     __(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
 }
 
+pub enum Shrink<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
+    __(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
+}
+
+pub enum Expand<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
+    __(PhantomData<&'a S>), W(I, X), H(I, X), WH(I, X, X),
+}
+
 pub enum Push<'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>>> {
     __(PhantomData<&'a S>), X(I, X), Y(I, X), XY(I, X, X),
 }
@@ -375,6 +383,34 @@ impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Ma
     }
 }
 
+impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Expand<'a, S, I, X> {
+    fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
+        #[cfg(feature = "prof")] profiling::scope!("expand_draw");
+        let XYWH(x, y, w0, h0) = to.area();
+        let (item, w, h) = match self {
+            Self::W(item, w)     => (item, (*w).into(), None),
+            Self::H(item, h)     => (item, None, (*h).into()),
+            Self::WH(item, w, h) => (item, (*w).into(), (*h).into()),
+            _ => return Ok(None)
+        };
+        to.draw(XYWH(x, y, w0 + w.unwrap_or_default(), h0 + h.unwrap_or_default()), item)
+    }
+}
+
+impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Shrink<'a, S, I, X> {
+    fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
+        #[cfg(feature = "prof")] profiling::scope!("shrink_draw");
+        let XYWH(x, y, w0, h0) = to.area();
+        let (item, w, h) = match self {
+            Self::W(item, w)     => (item, (*w).into(), None),
+            Self::H(item, h)     => (item, None, (*h).into()),
+            Self::WH(item, w, h) => (item, (*w).into(), (*h).into()),
+            _ => return Ok(None)
+        };
+        to.draw(XYWH(x, y, w0.minus(w.unwrap_or_default()), h0.minus(h.unwrap_or_default())), item)
+    }
+}
+
 impl <'a, S: Screen, I: Draw<S>, X: Into<Option<S::Unit>> + Copy> Draw<S> for Push<'a, S, I, X> {
     fn draw (&self, to: &mut S) -> Drawn<S::Unit> {
         #[cfg(feature = "prof")] profiling::scope!("push_draw");