Animation of black circle layers pulsating on black background

Background, Digital, Motion, Element, Animation, Concept, Digitallygenerated, Video, Digitalanimation, Montage, Technology, Business, Loop, Graphic, Design, Abstract, Symbol, Illustration, Digitally, Generated, Futuristic, Pattern, Sign, Shape, Black, Circle, Movement, Colour, Layer, Blackbackground, Pulsating, Animatedbackgrounds, Backgroundpattern, Chainreaction, Decorativepattern