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CSS

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JavaScript

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HTML 

              
                <!-- 코드펜 디스플레이용 -->
<div class="background"></div>
  <div class="some-div">
  <div class="some-box">
    <br><br><br>
    <h1> 🌠 Prism Particle Parallax</h1>
    <br> 전경과 원경이 나뉘어 있습니다. <br>
    The layers are separated into<br>foreground and background.
  </div>
</div>
<!-- 코드펜 디스플레이용 여기까지-->
<div class="background-effect-prism">
</div>
<div class="background-effect-prism-back">
</div>
!

CSS 

              
                /* 코드펜 디스플레이용 */
@font-face {
    font-family: 'ClimateCrisisKR-1979';
    src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2212@1.0/ClimateCrisisKR-1979.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
}
body {
  overflow:hidden;
}
.background {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background: url('https://images.unsplash.com/photo-1542272201-b1ca555f8505?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1974&q=80');
  position:absolute;
  overflow:hidden;
  filter: blur(3px);
}
.some-div {
  font-family: ClimateCrisisKR-1979;
  color:white;
  text-shadow:0px 0px 4px rgba(0,0,0,0.45);
  width: 100vw;
  height: 100vh;
  top: 0;
  left: 0;
  position:relative;
  display:flex;
  justify-content: center;
  align-items: center;
  overflow:hidden;
  z-index: 1;
}
.some-box {
  width: 500px;
  height: 300px;
  display: block;
  margin: 0 auto;
  position: absolute;
  background: linear-gradient(120deg, rgba(255,255,255,0.8), rgba(255,255,255,0.1));
  box-shadow: 0px 0px 20px white inset, 0px 0px 30px rgba(0,0,0,0.3);
  border: 1px solid white;
  border-radius: 20px;
  backdrop-filter: blur(10px);
  text-align: center;
}
/* 코드펜 디스플레이용 여기까지 */

/* 전경 레이어 */
.background-effect-prism {
			width: 100vw; 
			height: 100vh; 
			position:fixed; 
			top:0;
			left:0;
			pointer-events:none;
      z-index: 2;
		}
/* 원경 레이어 */
.background-effect-prism-back {
			width: 100vw; 
			height: 100vh; 
			position:fixed; 
			top:0;
			left:0;
			pointer-events:none;
      z-index: 0;
		}
/* 파티클 */
    .particle {
      position: absolute;
      width: 50px;
      height: 50px;
      display: block;
      border-radius: 100%;
      opacity: 0;
      animation-iteration-count: infinite;
      box-shadow: 10px -5px 3px rgba(255,255,255,0.2);
    }

    @keyframes spark1 {
      0% {opacity: 0;}
      30% {opacity: 1;}
      31% {opacity: 0;}
      32% {opacity: 1;}
      33% {opacity: 0;}
      34% {opacity: 1;}
      35% {opacity: 0;}
      70% {opacity: 1;}
      71% {opacity: 0;}
      90% {opacity: 1;}
      100% {opacity: 0;}
    }

    @keyframes spark2 {
      0% {opacity: 0;}
      70% {opacity: 1;}
      71% {opacity: 0;}
      90% {opacity: 1;}
      100% {opacity: 0;}
    }

    @keyframes sparkmove1 {
      0% {
        translate: -0px 0px;
      filter: blur(4px);}
      100% {translate: -900px 1200px;
      filter: blur(6px);}
    }

    @keyframes sparkmove2 {
      0% {
        translate: 0px 0px;
      filter: blur(1px);}
      100% {translate: -600px 800px;
      filter: blur(3px);}
    }

    /* 전경 */

    .background-effect-prism .particle:nth-child(n) {
      animation-name: spark1, sparkmove1;
      animation-duration: 20s;
      scale:200%;
    }
    .distance1-p {
    }

    .distance2-p {
    }

    /* 원경 */
 .background-effect-prism-back .particle:nth-child(n) {
      animation-name: spark2, sparkmove2;
      animation-duration: 40s;
      scale: 100%;
    }
!

JS 

              
                // i < 100 <=이 숫자로 갯수 조정. 20의 배수를 추천합니다
for (let i = 0; i < 40; i++) {
        var particleDiv = document.createElement('div');
        var z = Math.floor(Math.random() * 4);
        var color = '';
        if (z == 0){
            color = '#F8E0EC';
        } else if (z == 1){
            color = '#CED8F6';
        } else if (z == 2){
            color = '#F5ECCE';
        } else if (z == 3){
            color = '#E6F8E0';
        }
        var gradient = "background: linear-gradient(45deg, " + color + ", rgba(255, 222, 222, 0.253));";
        var x = Math.floor(Math.random() * 120) - 40;
        var y = Math.floor(Math.random() * 120) - 40;
        if (i % 2 == 0){
          particleDiv.setAttribute("class", "particle distance1-p");
          particleDiv.setAttribute("style", "top: " + x + "vh; right: " + y + "vw;" + gradient + " animation-delay: " + i % 20 + "s;");
        } else {
          particleDiv.setAttribute("class", "particle distance2-p");
          particleDiv.setAttribute("style", "top: " + x + "vh; right: " + y + "vw;" + gradient + " animation-delay: " + i % 20 + "s;");
        }
  if(i % 2 == 0){
    document.querySelector('.background-effect-prism').appendChild(particleDiv);
  }
  else {
    document.querySelector('.background-effect-prism-back').appendChild(particleDiv);
  }
        
    }

	    $('body').ready(function() {
	    const movement = e =>{
		  var amountMovedX = (e.clientX * -0.43 / 6);
		  var amountMovedY = (e.clientY * -0.43 / 6);
      var amountMovedX2 = (e.clientX * -0.1 / 6);
		  var amountMovedY2 = (e.clientY * -0.1 / 6);
       $('.distance1-p').css('transform', 'translate3d(' + amountMovedX +'px, '+amountMovedY+ 'px, 0px)');
       $('.distance2-p').css('transform', 'translate3d(' + amountMovedX2 +'px, '+amountMovedY2+ 'px, 0px)');
	}
    
	$('body')[0].addEventListener('mousemove', movement);
        
      });
!
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