Share your Discourse Christmas decorations!


Here are some Christmas animated lights you can add under Discourse’s header.

This is an implementation of Toby’s Christmas Lights on Codepen:
I tweaked the code a bit to make it fit Discourse.

See it in action here: (I’ll remove them in January)


On mobile (they will not follow the sticky header):

With a dark theme:

How to add it to Discourse:

  1. Go to your admin panel -> customization -> choose your current theme -> custom CSS/HTML
  2. Add this code in your CSS tab:

/* Christmas Lights

   Copyright (c) 2019 by Toby (
   Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
   The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

$globe-width:   12px;
$globe-height:  15px;
$globe-spacing: 40px;
$globe-spread: 3px;
$light-off-opacity: 0.4;
$speed: 0.5;

.lightrope {
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  position: absolute;
  left: 0;
  z-index: 1;
  margin: -45px 0 0 0;
  padding: 0;
  pointer-events: none;
  width: 100%;
  li {
    position: relative;
    animation-fill-mode: both; 
    list-style: none;
    margin: 0;
    padding: 0;
    display: block;
    width: $globe-width;
    height: $globe-height;
    border-radius: 50%;
    margin: $globe-spacing/2;
    display: inline-block;
    background: rgba(0,247,165,1);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,247,165,1);
    animation-name: flash-1;
    animation-duration: 2s;
    &:nth-child(2n+1) {
      background: rgba(0,255,255,1);
      box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,255,255,0.5);
      animation-name: flash-2;
      animation-duration: 0.4s;
    &:nth-child(4n+2) {
      background: rgba(247,0,148,1);
      box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(247,0,148,1);
      animation-name: flash-3;
      animation-duration: 1.1s / $speed;
    &:nth-child(odd) {
      animation-duration: 1.8s / $speed;
    &:nth-child(3n+1) {
      animation-duration: 1.4s / $speed;
    &:before {
      content: "";
      position: absolute;
      background: #222;
      width: ($globe-width - 2);
      height: $globe-height/3;
      border-radius: 3px;
      top: (0 - ($globe-height/6));
      left: 1px;
    &:after {
      content: "";
      top: (0 - $globe-height/2);
      left: $globe-width - 3;
      position: absolute;
      width: $globe-spacing + 12;
      height: ($globe-height/3 * 2);
      border-bottom: solid #222 2px;
      border-radius: 50%;
    &:last-child:after {
      content: none;
    &:first-child {
      margin-left: -$globe-spacing/2-$globe-width;
@keyframes flash-1 { 
    0%, 100% { background: rgba(0,247,165,1);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,247,165,1);} 
    50% { background: rgba(0,247,165,$light-off-opacity);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,247,165,0.2);}
@keyframes flash-2 { 
    0%, 100% { background: rgba(0,255,255,1);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,255,255,1);} 
    50% { background: rgba(0,255,255,$light-off-opacity);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(0,255,255,0.2);}
@keyframes flash-3 { 
    0%, 100% { background: rgba(247,0,148,1);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(247,0,148,1);} 
    50% { background: rgba(247,0,148,$light-off-opacity);
    box-shadow: 0px $globe-height/6 $globe-width*2 $globe-spread rgba(247,0,148,0.2);}
/* mobile */
.mobile-view .lightrope {
    margin-top: -26px;
  1. Add this code in your After header tab:
<ul class="lightrope">

(You may want to add some more <li></li> if you want your lights to take all the width of a 4K monitor. Currently, it fits a 2k monitor)

Save & Enjoy!

If you want to change the lights’ appearance, edit these variables at the beginning of the SCSS code:

$globe-width:   12px;
$globe-height:  15px;
$globe-spacing: 40px;
$globe-spread: 3px;
$light-off-opacity: 0.4;
$speed: 0.5;

Absolutely amazing. I’m definitely having this on my Discourse site, for sure! :kiss:


The classic Santa claus hats on avatars:

Hat from : G6gA3Wn

How to add it to Discourse:

  1. Go to your admin panel -> customization -> choose your current theme -> custom CSS/HTML
  2. Add this code in your CSS tab:
.main-avatar:after {
    content: url(;
    position: absolute;
    top: -5px;
    left: -19px;
.mobile-view .main-avatar:after {
    top: -17px;

(the hats should only appear on a topic view)

Save and enjoy your hats!

I recommend you to host the hat image on your Discourse server.


I know @dax posted some here a while ago, are they still valid?


There is another christmas hat tutorial here: Christmas hats!
A christmas hat theme component here: Christmas hats component
A snowing effect: Discourse snowing effect?
Another snowing effect and a santa claus head as a loading image: Christmas theme