How to add borders to a post

CAn anyone help me how to add borders to the posts in IF. Is there any code for that.

Already there is post regarding this but it was closed. So can't add my question there.

Pls this doubt is not abt siggies but abt adding borders to the posts.

While searching i found this only. But this too doesn't have any codes.

CAn anyone help me with codes

There was a post on same but there also nobody knows how to post above borders . But there also, I stated that we can use these borders by simply copy pasting them .

After copy Pasting then use your stuffs under it. :)

Example :

yes i saw ur reply too in that thread.

but just curious to knw that can we add any other styles or colours of borders.