diff --git a/12/style.css b/12/style.css
index 5cddf42..2ebb665 100644
--- a/12/style.css
+++ b/12/style.css
@@ -274,8 +274,8 @@ a:hover{
 
 #shell_03 {
     white-space: pre-wrap;
-    height: 350px;
-    width: 500px;
+    /*height: 350px;
+    width: 500px;*/
     font-family: monospace;
     color: white;
     font-size: 14px;
@@ -291,8 +291,8 @@ a:hover{
 }
 
 #shell_03 iframe{
-  width: 100%;
-  height: 100%;
+  width: 500px;
+  height: 200px;
   border: none;
   background-color: none;
   overflow: hidden;