It's worth noting that unfortunately some code isn't whitelisted on Toyhouse, but is on Circlejourney. There's also some code that is rendered incorrectly by Toyhouse and needs to be rearranged a specific way to work correctly. This mostly applies to CSS, but I've seen this occur with HTML such as <a> tags around <div>s as an example. SVGs also aren't fully supported by Toyhouse right now.