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The effect is very cool, like the love button CSS3 animation effects. The like special effect uses a heart-shaped button. When the user clicks the heart-shaped button, the heart-shaped button changes from gray to red, and at the same time, a firework explosion-like effect is produced around the heart-shaped button. The whole firework explosion effect is actually done by using the continuous playback of the background image, and then click the red heart button to play frame by frame