Handle raw html in docs markdown pages (apache#637)

landing-pages/site/assets/scss/_docs.scss

@@ -0,0 +1,29 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+@media (min-width: 768px) {
+    .list-providers {
+        column-count: 2
+    }
+}
+@media (min-width: 1000px) {
+    .list-providers {
+        column-count: 3
+    }
+}

landing-pages/site/assets/scss/main-custom.scss

@@ -52,3 +52,4 @@
 @import "highlights";
 @import "share-social-media";
 @import "four-oh-four";
+@import "docs";

landing-pages/site/content/en/docs/_index.md

@@ -19,6 +19,8 @@ Apache Airflow Core, which includes webserver, scheduler, CLI and other componen
 Providers packages include integrations with third party projects. They are updated independently of the Apache Airflow core.
 [Read the documentation >>](/docs/apache-airflow-providers/index.html)
 
+{{< rawhtml >}}
+
 <ul class="list-providers">
 
   <li><a href="/docs/apache-airflow-providers-airbyte/stable/index.html"><code>Airbyte</code></a></li>
@@ -171,6 +173,8 @@ Providers packages include integrations with third party projects. They are upda
 
 </ul>
 
+{{< /rawhtml >}}
+
 ## [Docker stack](/docs/docker-stack/index.html)
 
 Airflow has an official Dockerfile and Docker image published in DockerHub as a convenience package for
@@ -184,19 +188,6 @@ your own deployments.
 Airflow has an official Helm Chart that will help you set up your own Airflow on a cloud/on-prem Kubernetes environment and leverage its scalable nature to support a large group of users. Thanks to Kubernetes, we are not tied to a specific cloud provider.
 [Read the documentation >>](/docs/helm-chart/stable/index.html)
 
-<style>
-    @media (min-width: 768px) {
-        .list-providers {
-            column-count: 2
-        }
-    }
-    @media (min-width: 1000px) {
-        .list-providers {
-            column-count: 3
-        }
-    }
-</style>
-
 ## [Python API Client](https://github.com/apache/airflow-client-python)
 
 Airflow releases official Python API client that can be used to easily interact with Airflow REST API from Python code.

landing-pages/site/layouts/shortcodes/rawhtml.html

@@ -0,0 +1,20 @@
+{{/*
+ Licensed to the Apache Software Foundation (ASF) under one
+ or more contributor license agreements.  See the NOTICE file
+ distributed with this work for additional information
+ regarding copyright ownership.  The ASF licenses this file
+ to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance
+ with the License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing,
+ software distributed under the License is distributed on an
+ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ KIND, either express or implied.  See the License for the
+ specific language governing permissions and limitations
+ under the License.
+*/}}
+
+{{.Inner}}