Add files via upload

Author: mdzaberalhamid

project-8-tip-calculator/style.css

@@ -0,0 +1,8 @@
+* {
+    box-sizing: border-box;
+}
+
+body {
+    background-color: #f2f2f2;
+    font-family: Arial, Helvetica, sans-serif;
+}