diff --git a/.gitignore b/.gitignore
index 0f28dff..cbcd806 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,5 @@ backup/*
 examples/wasm-demo/www/pkg
 examples/.ipynb_checkpoints/
 tarpaulin-report.html
-.vscode/*
\ No newline at end of file
+.vscode/*
+.idea/
diff --git a/Cargo.toml b/Cargo.toml
index 53952f7..25f847b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ wasm-bindgen = "0.2.55"
 
 [dependencies.web-sys]
 version = "0.3.32"
-features = ['Document', 'DomRect', 'Element', 'HtmlElement', 'Node', 'Window', 'HtmlCanvasElement', 'CanvasRenderingContext2d']
+features = ['Document', 'DomRect', 'Element', 'HtmlElement', 'Node', 'Window', 'HtmlCanvasElement', 'CanvasRenderingContext2d', 'CssStyleDeclaration']
 
 [dev-dependencies]
 plotters = "^0.3.0"
diff --git a/src/canvas.rs b/src/canvas.rs
index 216e8fa..0924906 100644
--- a/src/canvas.rs
+++ b/src/canvas.rs
@@ -1,3 +1,4 @@
+use std::str::FromStr;
 use js_sys::JSON;
 use wasm_bindgen::{JsCast, JsValue};
 use web_sys::{window, CanvasRenderingContext2d, HtmlCanvasElement};
@@ -80,7 +81,13 @@ impl DrawingBackend for CanvasBackend {
     type ErrorType = CanvasError;
 
     fn get_size(&self) -> (u32, u32) {
-        (self.canvas.width(), self.canvas.height())
+        let style = window().unwrap()
+          .get_computed_style(&self.canvas)
+          .unwrap().unwrap();
+        let width = style.get_property_value("width").unwrap().replace("px", "");
+        let height = style.get_property_value("height").unwrap().replace("px", "");
+        (u32::from_str(&width).unwrap(),
+         u32::from_str(&height).unwrap())
     }
 
     fn ensure_prepared(&mut self) -> Result<(), DrawingErrorKind<CanvasError>> {