diff --git a/styles/globals.css b/styles/globals.css
index 20c01c6..97a0d22 100644
--- a/styles/globals.css
+++ b/styles/globals.css
@@ -3,6 +3,7 @@
 * {
   padding: 0;
   margin: 0;
+  box-sizing: border-box;
 }
 
 body {