diff --git a/src/httpd.rs b/src/httpd.rs
index cd4dc9f..3cfff90 100644
--- a/src/httpd.rs
+++ b/src/httpd.rs
@@ -97,7 +97,7 @@ fn page(heading: &str, content: Markup) -> Markup {
         html {
         head {
             link rel="stylesheet" type="text/css" href=(STYLES_CSS_FILENAME);
-            link rel="icon" type="image/png" href="/images/facicon.png"
+            link rel="icon" type="image/png" href="/images/favicon.png";
             script src=(APP_JS_FILENAME) {};
             title { (heading) }
         }
@@ -117,6 +117,19 @@ fn page(heading: &str, content: Markup) -> Markup {
                 br;
                 "RISC-V is a registered trademark of RISC-V International · Wallas is a registered trademark of Wallas-Marin Oy · Espressif is a registered trademark of Espressif Systems"
             }
+            dialog #message .dialog-center;
+            dialog #"set-target" .dialog-center {
+                span ."cancel-x" { "🗙" };
+                form {
+                    div #"temperature-form" {
+                        input #target type="tage" min="5" max="25" name="target"; 
+                        br;
+                        label #"target-label" for="target" { "Target temperature in °C" }; 
+                        br;
+                        button #"set-target" { "Set" };
+                    };
+                };
+            };
         }
 
     }