Help:Skins
A wiki skin controls the way a page displays using stylesheets. The default skin for the CPAPtalk.com CPAP Wiki is the Modern skin.
IMPORTANT!
To avoid formatting problems when viewing pages on the CPAPtalk.com CPAP Wiki, please use the default Modern skin.
Click on the my preferences link towards the upper left of the page while logged in, then click on the Skin button to change your skin. You can also preview the skin by clicking the (preview) links next to each skin.
You can make changes to the current skin's stylesheet file (CSS) by creating a subpage of your userpage, "User:Yourname/modern.css" for example. This requires your site admin to have enabled this feature -- if it is, you will see advice text at the top of your custom CSS page about clearing your browser's cache.