diff --git a/layouts/partials/opengraph.html b/layouts/partials/opengraph.html
index b3e9d33..dc5ed41 100644
--- a/layouts/partials/opengraph.html
+++ b/layouts/partials/opengraph.html
@@ -23,16 +23,34 @@
 <meta property="article:section" content="{{ .Section }}" />
 {{ with .PublishDate }}<meta property="article:published_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
 {{ with .Lastmod }}<meta property="article:modified_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
+{{ with .Params.thumbnail }}
+{{/* $thumbPath := (add $.Page.RelPermalink . ) */}}
+{{ $thumbnail := $.Resources.Get . }}
+{{ with $thumbnail }}
+{{ $img := $base.Filter (images.Overlay (.Process "fit 300x250") 875 38 )}}
+{{ $img = $img.Filter (images.Text $.Page.Title (dict
+  "color" "#d8d8d8"
+  "size" 64
+  "linespacing" 2
+  "x" 40
+  "y" 300
+  "font" $font
+))}}
+{{ $img = resources.Copy (path.Join $.Page.RelPermalink "og.png") $img }}
+{{ $.Scratch.Set "og_image" $img }}
+{{ end }}
+{{ else }}
 {{ $img := $base.Filter (images.Text .Page.Title (dict
   "color" "#d8d8d8"
   "size" 64
   "linespacing" 2
   "x" 40
-  "y" 240
+  "y" 300
   "font" $font
 ))}}
-{{ $img = resources.Copy (path.Join .Page.RelPermalink "og.png") $img }}
+{{ $img = resources.Copy (path.Join $.Page.RelPermalink "og.png") $img }}
 {{ .Scratch.Set "og_image" $img }}
+{{ end }}
 {{- end -}}
 {{ $img := .Scratch.Get "og_image" }}