@keyframes firework{0%{transform:translate(var(--x),var(--initialY));width:var(--initialSize);opacity:1}50%{width:.5vmin;opacity:1}to{width:var(--finalSize);opacity:0}}.firework,.firework:before,.firework:after{--initialSize: .5vmin;--finalSize: 45vmin;--particleSize: .2vmin;--color1: yellow;--color2: khaki;--color3: white;--color4: lime;--color5: gold;--color6: mediumseagreen;--y: -30vmin;--x: -50%;--initialY: 60vmin;content:"";animation:firework 2s infinite;position:absolute;top:50%;left:50%;transform:translate(-50%,var(--y));width:var(--initialSize);aspect-ratio:1;background:radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 50% 0%,radial-gradient(circle,var(--color2) var(--particleSize),#0000 0) 100% 50%,radial-gradient(circle,var(--color3) var(--particleSize),#0000 0) 50% 100%,radial-gradient(circle,var(--color4) var(--particleSize),#0000 0) 0% 50%,radial-gradient(circle,var(--color5) var(--particleSize),#0000 0) 80% 90%,radial-gradient(circle,var(--color6) var(--particleSize),#0000 0) 95% 90%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 90% 70%,radial-gradient(circle,var(--color2) var(--particleSize),#0000 0) 100% 60%,radial-gradient(circle,var(--color3) var(--particleSize),#0000 0) 55% 80%,radial-gradient(circle,var(--color4) var(--particleSize),#0000 0) 70% 77%,radial-gradient(circle,var(--color5) var(--particleSize),#0000 0) 22% 90%,radial-gradient(circle,var(--color6) var(--particleSize),#0000 0) 45% 90%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 33% 70%,radial-gradient(circle,var(--color2) var(--particleSize),#0000 0) 10% 60%,radial-gradient(circle,var(--color3) var(--particleSize),#0000 0) 31% 80%,radial-gradient(circle,var(--color4) var(--particleSize),#0000 0) 28% 77%,radial-gradient(circle,var(--color5) var(--particleSize),#0000 0) 13% 72%,radial-gradient(circle,var(--color6) var(--particleSize),#0000 0) 80% 10%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 95% 14%,radial-gradient(circle,var(--color2) var(--particleSize),#0000 0) 90% 23%,radial-gradient(circle,var(--color3) var(--particleSize),#0000 0) 100% 43%,radial-gradient(circle,var(--color4) var(--particleSize),#0000 0) 85% 27%,radial-gradient(circle,var(--color5) var(--particleSize),#0000 0) 77% 37%,radial-gradient(circle,var(--color6) var(--particleSize),#0000 0) 60% 7%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 22% 14%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 45% 20%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 33% 34%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 10% 29%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 31% 37%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 28% 7%,radial-gradient(circle,var(--color1) var(--particleSize),#0000 0) 13% 42%;background-size:var(--initialSize) var(--initialSize);background-repeat:no-repeat}.firework:before{--x: -50%;--y: -50%;--initialY: -50%;transform:translate(-50%,-50%) rotate(40deg) scale(1.3) rotateY(40deg)}.firework:after{--x: -50%;--y: -50%;--initialY: -50%;transform:translate(-50%,-50%) rotate(170deg) scale(1.15) rotateY(-30deg)}.firework:nth-child(2){--x: 30vmin}.firework:nth-child(2),.firework:nth-child(2):before,.firework:nth-child(2):after{--color1: pink;--color2: violet;--color3: fuchsia;--color4: orchid;--color5: plum;--color6: lavender;--finalSize: 40vmin;left:30%;top:60%;animation-delay:-.25s}.firework:nth-child(3){--x: -30vmin;--y: -50vmin}.firework:nth-child(3),.firework:nth-child(3):before,.firework:nth-child(3):after{--color1: cyan;--color2: lightcyan;--color3: lightblue;--color4: PaleTurquoise;--color5: SkyBlue;--color6: lavender;--finalSize: 35vmin;left:70%;top:60%;animation-delay:-.4s}