What does ">" mean In texts and such?

[Invert12]

I always see it in twitter, for example "drinking and not going to class >" I know it's a greater than sign, but nothings after it so it doesn't make sense.

[Vamp]

It's used in two ways.

Dog>cat. I like dogs better than cats. Dogs are better than cats

Dog> I like dogs. Dogs are good.

In your example someone is indicating that "drinking and not going to class" is a good or fun thing.

The opposite is < which is used in the same way to indicate that something is not good or nice.