diff --git a/first-step/index.js b/first-step/index.js
index c6fd0b7..fe66d08 100644
--- a/first-step/index.js
+++ b/first-step/index.js
@@ -10,7 +10,6 @@ class Block {
      */
     move() {
         document.onkeydown = (e)=> {
-            e.preventDefault();
             let activeModel = document.querySelector('.activityModel'),
                 left = parseInt(activeModel.style.left) ? parseInt(activeModel.style.left) : 0,
                 top = parseInt(activeModel.style.top) ? parseInt(activeModel.style.top) : 0;
diff --git a/second-step/index.js b/second-step/index.js
index e5544c1..b817531 100644
--- a/second-step/index.js
+++ b/second-step/index.js
@@ -46,7 +46,6 @@ class Block {
      */
     move() {
         document.onkeydown = (e)=> {
-            e.preventDefault();
             let activeModel = document.querySelector('.activityModel'),
                 left = parseInt(activeModel.style.left) ? parseInt(activeModel.style.left) : 0,
                 top = parseInt(activeModel.style.top) ? parseInt(activeModel.style.top) : 0;