How to make text smaller and bigger?

I see people who make their text smaller but I do not know how to do this? Can someone help me?

The only way ik to make text bigger is by using the dash (-), if there is another way please tell me

This a great tutorial made by macobre.

Link:

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Thank you bro

One more question, what is the fixed tag for? Is that something I’d use when like my question is answered or something?

i believe it’s intended for #bug-reports but it’s leaked into a few other categories by accident

You can add literally any tag to any post - the suggested tags are just common ones for the category.
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People have added “fixed” to enough random posts in many categories that it’s suggested in most categories now.

Oh, ok, thank you