diff --git a/README.rst b/README.rst
index e336720..83f8cb8 100644
--- a/README.rst
+++ b/README.rst
@@ -168,6 +168,7 @@ Other options:
       # Generating options
       --html                generate a html viewer at current directory
       --no-html             don't generate HTML after downloading
+      --gen-main            generate a main viewer contain all the doujin in the folder
       -C, --cbz             generate Comic Book CBZ File
       --rm-origin-dir       remove downloaded doujinshi dir when generated CBZ
                             file.
diff --git a/nhentai/viewer/index.html b/nhentai/viewer/index.html
index 6d344e3..33ea2af 100644
--- a/nhentai/viewer/index.html
+++ b/nhentai/viewer/index.html
@@ -2,6 +2,7 @@
 <html>
 <head>
     <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes, viewport-fit=cover" />
     <title>{TITLE}</title>
     <style>
 {STYLES}
diff --git a/nhentai/viewer/styles.css b/nhentai/viewer/styles.css
index abc219a..8246b36 100644
--- a/nhentai/viewer/styles.css
+++ b/nhentai/viewer/styles.css
@@ -67,4 +67,26 @@ html, body {
         0 0 2px #222,
         0 0 2px #222,
         0 0 2px #222;
+}
+
+@media only screen and (max-width: 855px) {
+    nav {
+        display: none;
+    }
+}
+
+@media only screen and (max-device-width: 855px) {
+    nav {
+        display: none;
+    }
+}
+
+div {
+    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
+}
+
+:focus {
+    outline: 0;
+    border:none;
+    color: rgba(0, 0, 0, 0);
 }
\ No newline at end of file
