diff --git a/__tests__/snapshot/board/examples/features/test.html.jpg b/__tests__/snapshot/board/examples/features/test.html.jpg
deleted file mode 100644
index 5c5b0e0..0000000
Binary files a/__tests__/snapshot/board/examples/features/test.html.jpg and /dev/null differ
diff --git a/__tests__/snapshot/board/examples/test/main.html.jpg b/__tests__/snapshot/board/examples/test/main.html.jpg
new file mode 100644
index 0000000..ea0f13a
Binary files /dev/null and b/__tests__/snapshot/board/examples/test/main.html.jpg differ
diff --git a/docs/todo/board.md b/docs/todo/board.md
new file mode 100644
index 0000000..4fa5809
--- /dev/null
+++ b/docs/todo/board.md
@@ -0,0 +1,5 @@
+# @idraw/board
+
+## Testing
+
+* [] 
\ No newline at end of file
diff --git a/packages/board/examples/basic/index.html b/packages/board/examples/test/main.html
similarity index 94%
rename from packages/board/examples/basic/index.html
rename to packages/board/examples/test/main.html
index 364def1..cb7372a 100644
--- a/packages/board/examples/basic/index.html
+++ b/packages/board/examples/test/main.html
@@ -3,6 +3,7 @@
     <style></style>
     <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
     <style>
+      html,body { margin: 0; padding: 0; }
       #mount canvas {
         border-right: 1px solid #aaaaaa40;
         border-bottom: 1px solid #aaaaaa40;
diff --git a/packages/board/examples/basic/main.js b/packages/board/examples/test/main.js
similarity index 91%
rename from packages/board/examples/basic/main.js
rename to packages/board/examples/test/main.js
index fa87243..f2cd0b7 100644
--- a/packages/board/examples/basic/main.js
+++ b/packages/board/examples/test/main.js
@@ -4,6 +4,8 @@ const mount = document.querySelector('#mount');
 const board = new Board(mount, {
   width: 600,
   height: 400,
+  contextWidth: 600,
+  contextHeight: 400,
   devicePixelRatio: 4
 });
 
diff --git a/scripts/screen.config.js b/scripts/screen.config.js
index c972937..3d45ab7 100644
--- a/scripts/screen.config.js
+++ b/scripts/screen.config.js
@@ -1,5 +1,5 @@
 const pageList = [
-  // { path: 'board/examples/features/test.html', w: 600, h: 400, delay: 1000 },
+  { path: 'board/examples/test/main.html', w: 600, h: 400, delay: 1000 },
   { path: 'core/examples/features/rect.html', w: 600, h: 400, delay: 1000 },
   { path: 'core/examples/features/text.html', w: 600, h: 400, delay: 1000 },
   { path: 'core/examples/features/svg.html', w: 600, h: 400, delay: 1000 },