selected text highliting retains

[dnetsoft]

I have a WP website, in which "selected text highlighting"(b ackground:blue) retains after text deselected by selecting some other text.
what could be the reason?

[Exequiel]

you didnot set the deselected text to its original background after clicking other text,

[dnetsoft]

Could you please tell me, how to do that as im a beginner. Thanks in advance

[Exequiel]

can you post your code? and we will try to fix it.