image highlighting on click

I have .jpg images for buttons to cycle through a gallery. When I clic开发者_运维百科k these buttons fast twice, it seems to highlight the image... is there a way I can "turn off" this highlighting? I didn't really know how to google this so I am asking here. Sorry if this is a duplicate.

Thanks!

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I think this other thread talks about what you need: How to disable text selection highlighting using CSS?