diff --git a/static/css/style.css b/static/css/style.css
index 39eb71b..bb4e750 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -274,6 +274,7 @@ img {
 #search_text {
   padding: 0.25em;
   border: #999999 1px solid;
+  width: 100%;
 }
 
 #notebook_header_area {
diff --git a/view/Search_form.py b/view/Search_form.py
index 6cddf00..dba1c8a 100644
--- a/view/Search_form.py
+++ b/view/Search_form.py
@@ -7,6 +7,6 @@ class Search_form( Form ):
 
     Form.__init__(
       self,
-      Input( type = u"text", name = u"search_text", id = u"search_text", size = 20, maxlength = 512, value = "search" ),
+      Input( type = u"text", name = u"search_text", id = u"search_text", maxlength = 512, value = "search" ),
       id = u"search_form",
     )