diff --git a/example1/example.rkt b/example1/example.rkt
index 142a1bb..5f646e7 100644
--- a/example1/example.rkt
+++ b/example1/example.rkt
@@ -93,7 +93,11 @@
              (counter-thread #f)
              )
         (send this set-menu! test-menu)
-        (send this connect-menu! 'm-quit (λ () (send this close)))
+        (send this connect-menu! 'm-quit
+              (λ ()
+                (set! go-on-counter #f)
+                (send this close))
+              )
         (let ((make-menu-executor (λ (item elem string count)
                                     (send this connect-menu! item
                                           (λ ()
@@ -113,13 +117,24 @@
                                                 (when go-on-counter
                                                   (set! c-counter (+ c-counter 1))
                                                   (send div-counter set-inner-html (format "Count = ~a" c-counter))
+                                                  (when (and (> c-counter 0) (<= c-counter 1))
+                                                    (send div-counter set-style! (css-style '((background white)))))
+                                                  (when (and (> c-counter 100) (<= c-counter 101))
+                                                    (send div-counter set-style! (css-style '((background green) (color white)))))
+                                                  (when (and (> c-counter 200) (<= c-counter 201))
+                                                    (send div-counter set-style! (string->css-style "background: yellow; font-size: 120%;")))
+                                                  (when (and (> c-counter 300) (<= c-counter 301))
+                                                    (send div-counter set-style! (string->css-style "color: white; background: orange; font-size: 130%;")))
+                                                  (when (and (> c-counter 400) (<= c-counter 401))
+                                                    (send div-counter set-style! (string->css-style "color: white; background: red; font-size: 150%; font-weight: bold;")))
                                                   (sleep 0.01)
                                                   (f)))))
                                     (set! go-on-counter #t)
                                     (f)))))))
           (send this connect-menu! 'm-stop
                 (λ ()
-                  (set! go-on-counter #f)))
+                  (set! go-on-counter #f)
+                  (set! c-counter 0)))
                                      
           )
         )
diff --git a/example1/styles.css b/example1/styles.css
new file mode 100644
index 0000000..ac40a3e
--- /dev/null
+++ b/example1/styles.css
@@ -0,0 +1,54 @@
+body {
+	font-family: Arial;
+	font-size: 11pt;
+}
+
+h1 {
+	color: #303030;
+}
+
+h1:hover {
+	color: #606060;
+}
+
+a {
+	text-decoration: none;
+}
+
+button.btn-1 {
+	background: #1adb4e;
+	border: 1px solid black;
+	padding: 1em;
+}
+
+button.btn-2 {
+	color: white;
+	background: #3e5c46;
+	border: 1px solid green;
+	padding: 1em;
+	margin-left: 1em;
+}
+
+button.btn-2 a {
+	color: white;
+}
+
+table {
+	margin: 1em;
+	border: 1px solid black;
+	border-collapse: collapse;
+}
+
+table td {
+	border: 1px solid #909090;
+	padding: 0.5em;
+	width: 70%;
+}
+
+table th {
+	border-collapse: collapse;
+	border: 1px solid #909090;
+	padding: 0.5em;
+	width: 30%;
+}
+
diff --git a/private/css.rkt b/private/css.rkt
index b30caf0..1c2d8ae 100644
--- a/private/css.rkt
+++ b/private/css.rkt
@@ -31,7 +31,7 @@
     (
      [style #:auto #:mutable]
      )
-    #:auto-value (make-hash)
+    #:auto-value #f
     #:transparent)
 
   (define-struct css-stylesheet
@@ -42,6 +42,7 @@
     #:transparent)
 
   (define st-style style-style)
+  (define st-style! set-style-style!)
   (define make-st make-style)
   (define st? style?)
   (define stylesheet? css-stylesheet?)
@@ -53,14 +54,15 @@
     (if (symbol? style_or_styles)
         (let ((css (if (null? args) "" (car args)))
               (st (make-st)))
+          (st-style! st (make-hash))
           (hash-set! (st-style st) style_or_styles css)
           st)
         (let* ((st (make-st))
-               (h (st-style st)))
+               (h (begin (st-style! st (make-hash)) (st-style st))))
           (for-each (lambda (st)
                       (let ((entry (car st))
                             (css (cadr st)))
-                        (hash-set! h entry css)))
+                        (hash-set! h entry (format "~a" css))))
                     style_or_styles)
           st)))