diff --git a/code/frontend/src/index.css b/code/frontend/src/index.css
index b2c8749..93524b0 100644
--- a/code/frontend/src/index.css
+++ b/code/frontend/src/index.css
@@ -1,3 +1,7 @@
+* {
+    box-sizing: border-box;
+}
+
 body {
     margin: 0;