How to make customizable marquee text effect?

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Can anyone guide me How Can i do this type of Marquee text effect as i showed in the below code with Customizable like Speed control & Delay.

<!DOCTYPE html>
<html>
<body>
	<marquee behavior="scroll" direction="left" scrollamount="3" scrolldelay="100">
		This is the demo code
	</marquee>
</body>
</html>