TAbs in Drupal 7?

Question

Drupal

Good day everyone!
I want to make horizontal TABS tabs in html and css and insert them into a block in Drupal 7, but for some reason < br > appears after the label tag, that is, a transfer to another line. In CSS, as expected, I wrote display: inline-block.
This is probably written somewhere in javascript or PHP, but I can't find it.
If anyone knows where this is written, please tell me.

Answer 1

Damn it turns out the editor himself put extra < br >