Revert "radius removed"

This reverts commit 26a1300417.

core/static/core/style.css

@@ -23,6 +23,7 @@ header {
     background-color:#DDD;
     margin: 0 10px;
     padding: 0 10px;
+    border-radius: 0 0 10px 10px;
 }
 header ul {
     display: inline-block;
@@ -59,7 +60,8 @@ header form {
 
 #language_chooser input {
     margin: 2px;
-    width:3em;
+    width: 3em;
+    height: 2em;
 }
 
 /*---------------------------------NAV---------------------------------*/