<p class="h-card vcard">

    <a href={{ .Site.BaseURL }} class="p-name u-url url fn" rel="me">{{ .Site.Params.author }}</a> 

    {{ if .Site.Params.email }} 
        /
        <a class="p-email u-email email" rel="me" href="mailto:{{ .Site.Params.email }}">{{ .Site.Params.email }}</a>
    {{ end }}

    {{ if .Site.Params.avatar }} 
        <img class="u-photo" src="{{ .Site.Params.avatar }}" />
    {{ end }}
</p>