add responsive

src/index.css

@@ -21,13 +21,21 @@
 }
 
 
-
-.content {
-  padding: 1.5rem;
-  z-index: 1;
-  
+@media screen and (max-width: 768px) {
+  .content{
+    padding: 0.7rem;
+    z-index:1;
+  }
 }
 
+@media screen and (min-width: 1000px) {
+  .content{
+    padding: 1.1rem;
+    z-index:1;
+  }
+}
+
+