diff --git a/hui-examples/examples/align.rs b/hui-examples/examples/align.rs
index 1c1c0fd..2316dc8 100644
--- a/hui-examples/examples/align.rs
+++ b/hui-examples/examples/align.rs
@@ -118,12 +118,12 @@ fn main() {
                 left: 30.,
                 right: 40.,
               },
-              corner_radius: Some(Corners {
+              corner_radius: Corners {
                 top_left: 0.,
                 top_right: 30.,
                 bottom_left: 0.,
                 bottom_right: 0.,
-              }),
+              },
               elements: vec![
                 Box::new(Rect {
                   size: (UiSize::Static(50.), UiSize::Static(50.)),
diff --git a/hui-examples/examples/mom_downloader.rs b/hui-examples/examples/mom_downloader.rs
index 4e93409..a680e64 100644
--- a/hui-examples/examples/mom_downloader.rs
+++ b/hui-examples/examples/mom_downloader.rs
@@ -56,7 +56,7 @@ fn main() {
             padding: Sides::all(10.),
             size: (UiSize::Static(450.), UiSize::Auto),
             background: Some(vec4(0.2, 0.2, 0.5, 1.)),
-            corner_radius: Some(Corners::all(8.)),
+            corner_radius: Corners::all(8.),
             elements: elements(|el| {
               if instant.elapsed().as_secs_f32() < 5. {
                 el.add(Text {
diff --git a/hui-examples/examples/rounded_rect.rs b/hui-examples/examples/rounded_rect.rs
index f75798e..9a1fa71 100644
--- a/hui-examples/examples/rounded_rect.rs
+++ b/hui-examples/examples/rounded_rect.rs
@@ -44,12 +44,12 @@ fn main() {
             align: Alignment::Center.into(),
             size: (UiSize::Fraction(0.5), UiSize::Fraction(0.5)),
             background: Some(vec4(1., 0., 0., 1.)),
-            corner_radius: Some(Corners {
+            corner_radius: Corners {
               top_left: 10.,
               top_right: 20.,
               bottom_left: 50.,
               bottom_right: 80.
-            }),
+            },
             elements: vec![
               Box::new(Container {
                 padding: Sides::all(20.),
@@ -57,7 +57,7 @@ fn main() {
                 align: Alignment::Center.into(),
                 size: (UiSize::Auto, UiSize::Auto),
                 background: Some(vec4(0.1, 0.1, 0.1, 0.5)),
-                corner_radius: Some(Corners::all(8.)),
+                corner_radius: Corners::all(8.),
                 elements: vec![
                   Box::new(Text {
                     text: "Corners".into(),
diff --git a/hui/src/element/builtin/container.rs b/hui/src/element/builtin/container.rs
index 913b2bb..a4beb90 100644
--- a/hui/src/element/builtin/container.rs
+++ b/hui/src/element/builtin/container.rs
@@ -20,7 +20,7 @@ pub struct Container {
   pub align: Alignment2d,
   pub background: Option<Vec4>,
   pub borders: Sides<Option<Border>>,
-  pub corner_radius: Option<Corners<f32>>,
+  pub corner_radius: Corners<f32>,
   //pub clip: bool, //TODO clip children
   pub elements: Vec<Box<dyn UiElement>>,
 }
@@ -39,7 +39,7 @@ impl Default for Container {
       background: Default::default(),
       borders: Default::default(),
       elements: Vec::new(),
-      corner_radius: None,
+      corner_radius: Corners::all(0.),
     }
   }
 }
@@ -130,7 +130,9 @@ impl UiElement for Container {
         position,
         size: ctx.measure.size,
         color,
-        rounded_corners: self.corner_radius.map(RoundedCorners::from_radius),
+        rounded_corners: (self.corner_radius.max_f32() > 0.).then_some({
+          RoundedCorners::from_radius(self.corner_radius)
+        }),
       });
     }