diff --git a/layouts/partials/card.html b/layouts/partials/card.html
index e5e42fe..ef88f99 100644
--- a/layouts/partials/card.html
+++ b/layouts/partials/card.html
@@ -12,18 +12,23 @@
     {{- $img = $refImg -}}
   {{- end -}}
   {{ if $img -}}
-    {{- $image := (resources.Get (printf "img/%s" $img)).Resize "400x" -}}
-    <img width="100%" 
-         src="{{ $image.RelPermalink }}" alt="{{ .Title }}">
-  {{ else if .Params.teaser }}
+    {{- $image := resources.Get (printf "img/%s" $img) -}}
+	{{- if eq $image nil -}}
+      {{- warnf "not found: %v" $img  -}}
+	{{- else -}}
+      {{- $image = $image.Resize "400x" -}}
+      <img width="100%" 
+           src="{{ $image.RelPermalink }}" alt="{{ .Title }}">
+    {{- end -}}
+  {{- else if .Params.teaser -}}
     <div class="card-header">
       <p class="card-text">{{ .Params.teaser }}</p>
     </div>
-  {{ else if .Site.Params.defaultImage }}
+  {{- else if .Site.Params.defaultImage -}}
     <img width="100%" 
          src="{{ .Site.BaseURL }}img/{{ .Site.Params.defaultImage }}" 
          alt="{{ .Site.Title }}">
-  {{ end }}
+  {{- end }}
 
   <div class="card-body">
     <span class="card-title h4">{{ .Title | truncate 30 }}</span>
diff --git a/layouts/partials/sidebar.html b/layouts/partials/sidebar.html
index 1cc5b34..1642f99 100644
--- a/layouts/partials/sidebar.html
+++ b/layouts/partials/sidebar.html
@@ -18,10 +18,16 @@
     {{- if $refPage -}}
       <a href="{{ $refPage.Permalink }}"><img 
             width="100%" class="mt-3"
-            src="{{ $image.RelPermalink }}" alt="{{ $refPage.Title }}"></a>
+            src="{{ $image.RelPermalink }}" 
+			alt="{{ $refPage.Title }}"
+			title="{{ $refPage.Title }}"></a>
     {{- else -}}
       <img width="100%" class="mt-3"
-           src="{{ $image.RelPermalink }}" alt="{{ .Title }}">
+           src="{{ $image.RelPermalink }}" 
+		   alt="{{ .Title }}"
+		   {{- if .Params.imgtitle -}}
+		     title="{{ .Params.imgtitle }}"
+	  	   {{- end -}}>
     {{- end -}}
   {{- else if .Params.teaser -}}
   <div class="card mt-3">