diff --git a/optim-classes.sh b/optim-classes.sh
new file mode 100755
index 0000000..b648402
--- /dev/null
+++ b/optim-classes.sh
@@ -0,0 +1,48 @@
+#!/bin/zsh
+
+classes=( $(cat _site/**/*.html | perl -p -e 's/class="?([a-zA-Z0-9-_]*)/\nCLASS: $1\n/g'|grep CLASS|sort -u|cut -d\   -f 2,2) )
+
+chr() {
+    [ "$1" -lt 26 ] || return 1
+    printf "\\$(printf '%03o' $(( 97 + $1 )))"
+}
+
+ord() {
+    LC_CTYPE=C printf '%d' "'$1"
+}
+
+shortName() {
+    if [ "$1" -gt 25 ]; then
+        print -- $(shortName $(( ( $1 / 26 ) - 1 )))$(shortName $(( $1 % 26 )))
+    else
+        chr $1
+    fi
+}
+
+i=0;
+typeset -A assoc
+for c in $classes; do
+    sn=$(shortName $i)
+    print "$c $sn"
+    assoc[$c]=$sn
+    ((i++))
+done
+
+hmltreplace=''
+cssreplace=''
+for long in $classes; do
+    htmlreplace="${htmlreplace}s/\(class=\"\?\)${long}/\$\{1\}${assoc[${long}]}/g;"
+    cssreplace="${cssreplace}s/\(\\.\)${long}/\$\{1\}${assoc[${long}]}/g;"
+done
+
+print -- $htmlreplace
+print -- $cssreplace
+
+for fic in _site/**/*.html; do
+    print -- $fic
+    perl -pi -e $htmlreplace $fic;
+done
+for fic in _site/**/*.css; do
+    echo $fic
+    perl -pi -e $cssreplace $fic;
+done
diff --git a/optim-html.sh b/optim-html.sh
index b689a78..4e2b85f 100755
--- a/optim-html.sh
+++ b/optim-html.sh
@@ -23,6 +23,8 @@ for fic in $filelist; do
         continue
     fi
     print -n -- "$fic "
-    cp $fic $tmp; minify --mime text/html $tmp > $fic
+    cp $fic $tmp
+    perl -pi -e 's#<div id="outline-container-[^>]*>#<div>#g;s# id="org[a-f0-9]{7}"##g' $tmp
+    minify --mime text/html $tmp > $fic
     print "[OK]"
 done
diff --git a/project.el b/project.el
index 797dc65..d2eb329 100644
--- a/project.el
+++ b/project.el
@@ -24,10 +24,9 @@
 
 (defvar org-blog-head
   (concat
-   "<link rel=\"stylesheet\" type=\"text/css\" href=\"" css-path "\"/>"
-   "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">"
-   "<link rel=\"alternative\" type=\"application/rss+xml\" title=\"" rss-title "\" href=\"/rss.xml\" />"
-   "<link rel=\"shortcut icon\" type=\"image/x-icon\" href=\"/favicon.ico\">"))
+   "<link rel=\"stylesheet\" href=\"" css-path "\"/>"
+   "<link rel=\"alternate\" type=\"application/rss+xml\" href=\"/rss.xml\" />"
+   "<link rel=\"icon\" href=\"/favicon.ico\">"))
 
 (defun menu (lst)
   "Blog menu"
@@ -101,7 +100,7 @@
      (format "<div class=\"date\">Created: %s (%s)</div>" date (y-date date)))
    (when-let ((keywords (plist-get info :keywords)))
      (format "<div class=\"keywords\">Keywords: <code>%s</code></div>" keywords))
-   "<div class=\"rss\"><a href=\"/rss.xml\">RSS</a>: <a href=\"https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fher.esy.fun%2Frss.xml\">Valid RSS</a></div>"
+   "<div class=\"rss\"><a rel=\"alternate\" type=\"application/rss+xml\" href=\"/rss.xml\">RSS</a>: <a href=\"https://validator.w3.org/feed/check.cgi?url=https%3A%2F%2Fher.esy.fun%2Frss.xml\">Valid RSS</a></div>"
    (format "<div class=\"date\">Generated: %s</div>"
            (format-time-string "%Y-%m-%d %H:%M:%S"))
    "<div class=\"web-file-size\">Size: XXK (HTML: XXK, CSS: XXK, IMG: XXK)</div>"
diff --git a/project.el.sig b/project.el.sig
index 0abcca4..1873af1 100644
Binary files a/project.el.sig and b/project.el.sig differ