Config for TYPO3 for Responsive Webdesign

config {
    doctype(
    <!DOCTYPE html>
    <!-- paulirish.com/2008/conditional-stylesheets-vs-css-hacks-answer-neither/ -->
    <!--[if lt IE 7 ]> <html lang="de-DE" class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
    <!--[if IE 7 ]>    <html lang="de-DE" class="no-js lt-ie9 lt-ie8"> <![endif]-->
    <!--[if IE 8 ]>    <html lang="de-DE" class="no-js lt-ie9"> <![endif]-->
    <!--[if gt IE 8 ]><![endif]-->
    )
    xmlprologue = none
    metaCharset = utf-8
    renderCharset = utf-8
    language = de
    locale_all = de_DE@euro

    # activate realURL
    simulateStaticDocuments = 0
    tx_realurl_enable = 1
    absRefPrefix = {$BASEURL}
    prefixLocalAnchors = all

    # useful imagenames for seo
    meaningfulTempFilePrefix = 80

    # removes HTML Comments in sourcecode
    disablePrefixComment = 1

#   # compression and concatenation for JS and CSS
    concatenateCss = 1
    compressCss = 1
    concatenateJs = 1
    compressJs = 1
}