Do you want it as a Tooltip (when hover of image ends, Tooltip closes); or,
as a Dropdown/Dropout/Dropup (when hover of image AND Drop... ends, then Drop... closes?
In the meanwhile suggest reading the following Topic, particularly the 1st reply (post #42455), to get an idea of Kendo UI Hash Templates for conditional output, which are very useful in Custom Queries:
http://awareim.com/forum/https://www.awareim.com/forum/d/9429>
and, in the current last reply (post #42497) there is the following link, which is worth running in order to examine its workings which include what you would need IF Tooltip is the type of fuctionality required:
https://www.w3schools.com/code/tryit.asp?filename=FEMF36NI4EMZ
This example contains a hover Tooltip as well as a click inline displayed 'info box' (not Drop...) which is closed by clicking any part of the screen including the button clicked in the first place.
Additionally, a Kendo UI Hash Template is incorporated to conditionally display the hover Tooltip depending on the LoginName attribute value. Note the Hash Template related components are currently commented out with ' <!-- ' and ' --> '.
and, if you're going to use Custom Queries with Tooltips or Dropdowns/Dropouts/Dropups, then you especially need to understand proper use of CSS Selectors, particularly:
, > + ~
and space
Refer:
https://www.w3schools.com/cssref/css_selectors.asp