javascript - How to change colour of text when using document.getElementById("id").innerHTML -

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i trying change text of span else when particular event occurs. doing : 

document.getelementbyid("usernameerror").innerhtml = "**message";

i want display same in different colour. idea on how that? appreciated!

you put message in span , put style attribute on it. should it:

document.getelementbyid("usernameerror").innerhtml = "<span style='color: red;'>**message</span>";

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