Help:Outdated/Galleries and slideshows/wikitext
From Tardis Wiki, the free Doctor Who reference
Gallery markup must be done in compliance with T:GAL RULES. Importantly, every single gallery must have hideaddbutton="true". You are also reminded that it's best to keep galleries limited to pictures of the same orientation. Mixing portrait and landscape (widescreen) pictures can sometimes have unpredictable results. When using galleries with covers, you are strongly encouraged to use the option orientation=portrait.
