update phone screen size a little

diff --git a/css/style.css b/css/style.css
index 5619700..2295d86 100644
--- a/css/style.css
+++ b/css/style.css
@@ -730,8 +730,8 @@
 }
 
 .phone-screen {
-  width: 10.3em;
-  height: 18.3em;
+  width: 10.5em;
+  height: 19.3em;
   position: relative;
   left: 0;
   right: 0;