layouts/index.html

<!DOCTYPE html>
<html id="html" lang="{{ with .Site.LanguageCode }}{{ . }}{{ else }}en-US{{ end }}">
<head>
    <meta http-equiv="content-type" content="text/html;charset=utf-8">
    <meta name="viewport" content="width=device-width"/>
    <title>{{ .Site.Title }}</title>
    <meta name="description" content="{{ with .Site.Params.description }}{{ . }}{{ end }}">
    <meta name="author" content="{{ with .Site.Params.author }}{{ . }}{{ end }}">
    {{ .Hugo.Generator }}
    {{ partial "style.html" . }}
</head>

<body>
    <section id="Menu">
        <header>
            <h1>{{ with .Site.Params.headerTitle }}{{ . | markdownify }}{{ else }}{{ .Site.Title }}{{ end }}</h1>
            <p>{{ with .Site.Params.headerDescription }}{{ . | markdownify }}{{ else }}{{ .Site.Params.description }}{{ end }}</p>
        </header>
        <nav>
        {{ range .Site.Menus.top }}
            <a href="{{.URL}}" target="blank">{{ .Name }}</a>
        {{ end }}
        </nav>
        <nav>
        {{ range .Data.Pages.ByWeight }}
            <a href="#{{ .Params.anchor }}">{{ .Title }}</a>
        {{ end }}
        </nav>
    </section>

    {{ range .Data.Pages.ByWeight }}

    <section id="{{ .Params.anchor }}">

        <h1><a href="#{{ .Params.anchor }}">{{ .Title }}</a><small><a href="#html">{{ with .Site.Params.bttButton }}{{ . | markdownify }}{{ else }}Back to Top{{ end }}</a></small></h1>

        {{ .Content | markdownify }}

    </section>

    {{ end }}

</body>
</html>