Options -Indexes

<ifModule mod_rewrite.c>
RewriteEngine On
RewriteCond $1 !^(css)
RewriteRule ^([^/]*)/([^/]*)$ /?dir=$1&file=$2 [L]
AddType text/css .css
</IfModule>

<IfModule mod_headers.c>
Header always set X-FRAME-OPTIONS "DENY"
Header set Content-Security-Policy "script-src 'self'"
Header set Content-Security-Policy "base-uri 'self';"
</IfModule>

<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 1 day"
</IfModule>