Don't want alt text to show in pop up

[letsgofishing]

I've attached alt tags to all my images so that Google's happy, but to write different ones for each image (around 150) is a PITA so a large number of them are copy and paste.
But I DON'T want them to show in the image pop ups - is there a way to prevent this?
Screen captures attached.
May thanks,
LGF

[Acorn]

I've attached alt tags to all my images so that Google's happy, but to write different ones for each image (around 150) is a PITA so a large number of them are copy and paste.
But I DON'T want them to show in the image pop ups - is there a way to prevent this?
Screen captures attached.
May thanks,
LGF

LGF, add this code to Website > HTML Code (head):

<style>
.highslide-caption {
  display:none !important;
</style>

Acorn

[letsgofishing]

LGF, add this code to Website > HTML Code (head):

<style>
.highslide-caption {
  display:none !important;
</style>

Acorn

As always, Acorn - thank you.