Help Centering Spoiler Boxes

[ACasualBrit]

Hi! Really need help on this minor issue. I want to center my spoiler boxes and what's in them but I can't seem to do it? Am I being daft?

Can we change the colour of the boxes too? I'm new to this more custom style of coding.

 

[Alteras]

Spoiler: text

hello

[center][spoiler=text]hello[/spoiler][/center]

 

[ACasualBrit]

Spoiler: text

hello

[center][spoiler=text]hello[/spoiler][/center]

Can we change the colour of the boxes too? I'm new to this more custom style of coding.

 

[Alteras]

unfortunately not