CSS Work In Progress

* new peertube theme for ConverseJS
* CSS linting
* splash screen
* defining CSS variables

conversejs/custom/sass/livechat.scss

@@ -1,6 +1,15 @@
+@import "./variables";
 @import "sass/converse";
 
 body.livechat-iframe #conversejs .chat-head {
   // Hidding the chat-head when the plugin is displayed in an iframe.
   display: none;
 }
+
+#conversejs-bg {
+  .converse-brand__heading {
+    img {
+      margin-top: 0.3em;
+    }
+  }
+}