diff --git a/.gitignore b/.gitignore
index ce311a0..f88a521 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,5 @@ bindata_assetfs.go
 assets_vfsdata.go
 *.un~
 *.swp
+
+dist/
diff --git a/README.md b/README.md
index b85fbc3..4bc8c19 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 **Binaries** can be downloaded from [this repo releases](https://github.com/codeskyblue/gohttpserver/releases/)
 
 ## Requirements
-Tested with go-1.10, go-1.11
+Tested with go-1.16
 
 ## Screenshots
 ![screen](testdata/filetypes/gohttpserver.gif)
diff --git a/assets/index.html b/assets/index.html
index 8acc105..0735c41 100644
--- a/assets/index.html
+++ b/assets/index.html
@@ -4,6 +4,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
+  <meta name="theme-color" content="#000000">  
   <title>[[.Title]]</title>
   <link rel="shortcut icon" type="image/png" href="/-/assets/favicon.png" />
   <link rel="stylesheet" type="text/css" href="/-/assets/bootstrap-3.3.5/css/bootstrap.min.css">
@@ -256,7 +257,7 @@ <h4 class="modal-title">
     <div class="col-md-12">
       <div id="footer" class="pull-right" style="margin: 2em 1em">
         <a href="https://github.com/codeskyblue/gohttpserver">gohttpserver (ver:{{version}})</a>, written by <a href="https://github.com/codeskyblue">codeskyblue</a>.
-        Copyright 2016-2018. go1.10
+        Copyright 2016-2021. go1.16
       </div>
     </div>
   </div>
@@ -273,6 +274,11 @@ <h4 class="modal-title">
   <script src="/-/assets/bootstrap-3.3.5/js/bootstrap.min.js"></script>
   <script src='/-/assets/[["js/index.js" | urlhash ]]'></script>
   <!-- <script src="/-/assets/js/index.js"></script> -->
+  <!--Sync status bar color with border-color on mobile platforms.-->
+  <script>
+    var META = document.getElementsByTagName("meta");
+    META[2]["content"]=$('.navbar').css('border-color');
+  </script>
   [[if .GoogleTrackerID ]]
   <script>
     (function (i, s, o, g, r, a, m) {
@@ -292,4 +298,4 @@ <h4 class="modal-title">
   </script> [[ end ]]
 </body>
 
-</html>
\ No newline at end of file
+</html>
diff --git a/assets/themes/cyan.css b/assets/themes/cyan.css
new file mode 100644
index 0000000..f322db5
--- /dev/null
+++ b/assets/themes/cyan.css
@@ -0,0 +1,31 @@
+body {}
+
+td>a:hover {
+    color: #4cc0cf;
+    font-weight: normal;
+}
+
+td>a {
+    color: rgb(51, 51, 51);
+}
+
+a:hover {
+    font-weight: bold;
+}
+
+.navbar {
+    background-color: #00BCD4;
+    border-color: #0097A7;
+}
+
+.navbar .navbar-brand {
+    color: white;
+}
+
+.navbar {
+    border-radius: 0px;
+}
+
+.navbar-default ul.navbar-nav>li>a {
+    color: white;
+}
diff --git a/go.mod b/go.mod
index a6e0a00..29d2148 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,7 @@
 module github.com/codeskyblue/gohttpserver
 
+go 1.16
+
 require (
 	github.com/alecthomas/kingpin v2.2.6+incompatible
 	github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc // indirect
@@ -23,5 +25,3 @@ require (
 	golang.org/x/tools v0.1.0 // indirect
 	howett.net/plist v0.0.0-20201203080718-1454fab16a06 // indirect
 )
-
-go 1.13
