Description of each job offer is jumping when collapsing

I noticed, that when you expand or collapse job position at /jobs, for a short while there is bigger gap between job name and job description while it's expanding or collapsing

It can be seen here: http://recordit.co/ibltd5nPBw Or you can test it yourself: https://nextcloud.com/jobs/

I failed to find the cause of this, so for now I am submitting it as an issue, however it seems to be connected with class "collapsing"