None of the other answers worked for me. You can collapse cells by adding this to the top of the cell “#@title” and then double clicking on the white space that appears to the right of it.
#@title Your Title Here
None of the other answers worked for me. You can collapse cells by adding this to the top of the cell “#@title” and then double clicking on the white space that appears to the right of it.
#@title Your Title Here