The Sims 4

Formatting
[b]text[/b] - bold
[i]text[/i] - italic
[s]strikethrough[/s] - strikethrough
[tt]text[/tt] - fixed-width type
[color red]text[/color] - colored text (full list)
[spoiler]text[/spoiler] - Text hidden with spoiler cover
[https://www.example.com/page/,Link to another site] - Link to another site

Linking
When you mention an album, artist, film, game, label, etc - it's recommended to link to the item the first time you mention it. Doing so will make it easier to search for your post and give it more visibility. To link an item, use the search box above, or find the shortcut that appears on the page that you want to link. You can customize the link name of shortcuts by using the format [Artist12345,Custom Name].