diff --git a/app.js b/app.js
index 7b5328f..7e36a40 100644
--- a/app.js
+++ b/app.js
@@ -1 +1,6 @@
-console.log(d3);
+var WIDTH = 300;
+var HEIGHT = 200;
+
+d3.select("svg")
+    .attr("width", WIDTH)
+    .attr("height", HEIGHT);