diff --git a/index.css b/index.css
index e816081..e8c9626 100644
--- a/index.css
+++ b/index.css
@@ -1,17 +1,25 @@
+body {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: space-evenly;
+}
 .red {
   width: 150px;
   height: 150px;
   background-color: red;
+  order: -1;
 }
 
 .blue {
   width: 150px;
   height: 150px;
   background-color: blue;
+  order: 1;
 }
 
 .yellow {
   width: 150px;
   height: 150px;
   background-color: yellow;
+  order: 0;
 }
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..48e341a
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,3 @@
+{
+  "lockfileVersion": 1
+}