Brake Fluid Tank Seems Loose.....

[badlander]

Just noticed it during a fluid flush. Seems overly loose and wobbles easily from side to side. Seems like it would be flopping back and forth on a rough trail. Is this normal? could someone please check theirs and provide some feedback?
Thanks.

 

[Sandroad]

Mine has a slight play side to side but hits hard stops so it doesn't really flop. No play front to back.