start css

assets/css/xml.css

@@ -0,0 +1,66 @@
+/* This CSS stylesheet is an example of how we can style XML with CSS */
+
+/* Group behavior */
+channel {
+  display:block;
+  border: 1px solid gray;
+  margin:0.5em;
+  padding:0.5em;
+  background-color:whitesmoke;
+  list-style: none;
+  color: black;
+}
+item {
+  display:block;
+  border: 1px solid silver;
+  margin:0.5em;
+  padding:0.5em;
+  background-color:whitesmoke;
+}
+
+/* single items */
+title {
+  color: #ee7402;
+  font-size: 120%;
+}
+title:before,
+link:after{
+  content: '\a';
+  white-space: pre;
+}
+title:after{
+  content: '\a\a';
+  white-space: pre;
+}
+link{
+  color: navy;
+  text-decoration: underline;
+} 
+link:before{ content: "Link: "; }
+description{
+  color: #f94f22;
+}
+language:before{ content:" In "; }
+language:after{ content:"utscher Sprache."; }
+description:before{ content: "Beschreibung:"; }
+id,
+copyright,
+generator,
+updated,
+pubDate,
+lastBuildDate{ display: none; }
+itunes\:owner{ display: none; }
+name {color:red; text-decoration: underline}
+price {color:green}
+stock {color:brown}
+country {color:blue}
+
+/* IE supports the ID selector also for XML */
+product#p4 {text-align:right}
+/* Alternative in: Firefox, Opera, Google Chrome *
+/product[id=p4] {text-align:right}
+
+/* IE supports the class attribute for XML */
+product.special {background-color:mistyrose}
+/* Alternative in: Firefox, Opera, Google Chrome */
+product[class=special] {background-color:mistyrose} 

templates/feed_podcast-he.xml

@@ -1,6 +1,17 @@
 {%- set baseurl = "https://podcast.c3woc.de" -%}
 {%- set search = "eisen" -%}
 <?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet href=
+  {%- if '/css/xml.min.css'|asseturl == empty -%}
+    {%- if '/css/xml.css'|asseturl == empty -%}
+      "https://{{ baseurl }}/css/main.min.css"
+    {%- else -%}
+      "{{ '/css/xml.css'|asseturl }}"
+    {%- endif -%}
+  {%- else -%}
+    "{{ '/css/xml.min.css'|asseturl }}"
+  {%- endif -%}
+type="text/css"?>
 <rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
   <channel>
     <title type="text">

templates/layout.html

@@ -18,13 +18,17 @@
     <link rel="stylesheet" href="{{ '/css/font-awesome.min.css'|asseturl }}" />
     <link rel="stylesheet" href="{{ '/fonts/roboto.css'|asseturl }}" />{%
   endif %}
-    <link rel="stylesheet" href={%
-        if '/css/main.min.css'|asseturl == empty %}{%
-            if '/css/main.css'|asseturl == empty %}"https://{{ fqdn }}/css/main.min.css"{%
-            else %}"{{ '/css/main.css'|asseturl }}"{%
-            endif %}{%
-        else %}"{{ '/css/main.min.css'|asseturl }}"{%
-        endif %} /> 
+    <link rel="stylesheet" href=
+      {%- if '/css/main.min.css'|asseturl == empty -%}
+        {%- if '/css/main.css'|asseturl == empty -%}
+          "https://{{ fqdn }}/css/main.min.css"
+        {%- else -%}
+          "{{ '/css/main.css'|asseturl }}"
+        {%- endif -%}
+      {%- else -%}
+        "{{ '/css/main.min.css'|asseturl }}"
+      {%- endif -%}
+     /> 
     <!--[if lte IE 9]><link rel="stylesheet" href={%
         if '/css/ie9.min.css'|asseturl == empty %}"https://{{ fqdn }}/css/ie9.min.css"{%
         else %}"{{ '/css/ie9.min.css'|asseturl }}"{%