纯css实现钢琴自动弹奏效果-html代码-BFW代码库

代码语言：html
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<title> Piano keyboard</title>
<style>
  /* Variables */
/* Reset */
*, *::after, *::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transform-style: preserve-3d;
}

/* Generic */
body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #B8ACFB;
}

.main {
  width: 800px;
  height: 600px;
  position: relative;
}

/*Base*/
.face-keyboard,
.face-key {
  position: absolute;
}

.keyboard {
  position: relative;
  left: 27%;
  top: 33%;
  transform-origin: bottom left;
  transform: perspective(10000px) rotateY(-16deg) rotateX(66deg) rotateZ(37deg);
  /**/
  /**/
}
.keyboard__front {
  width: 800px;
  height: 220px;
  transform: rotateY(0deg) translateZ(15px);
  background-color: #3F3B43;
}
.keyboard__back {
  width: 800px;
  height: 220px;
  transform: rotateY(180deg) translateZ(15px);
  background-color: #151514;
  box-shadow: 0px 25px 0 #6E68C5, -40px 5px 0 #6E68C5, -40px 25px 0 #6E68C5;
}
.keyboard__right {
  width: 30px;
  height: 220px;
  transform: rotateY(90deg) translateZ(785px);
  background-image: linear-gradient(to right, #1A191C 50%, #151514 50%);
}
.keyboard__left {
  width: 30px;
  height: 220px;
  transform: rotateY(-90deg) translateZ(15px);
  background-image: linear-gradient(to right, #1A191C 50%, #151514 50%);
}
.keyboard__top {
  width: 800px;
  height: 30px;
  transform: rotateX(90deg) translateZ(15px);
  background-color: #3F3B43;
}
.keyboard__bottom {
  width: 800px;
  height: 30px;
  transform: rotateX(-90deg) translateZ(205px);
  background-image: linear-gradient(to bottom, #1A191C 50%, #151514 50%);
}
.keyboard__f-top {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: nowrap;
  width: 803px;
  height: 100px;
  margin-top: 10px;
  border-bottom: 20px solid #2A2631;
  transform: translateZ(5px) rotateX(-6deg) rotateZ(0.9deg);
  background-color: #3F3B43;
}
.keyboard__led {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  width: 110px;
  height: 42px;
  background-color: #3CFBFE;
  border-top: 10px solid #151514;
  border-left: 10px solid #151514;
  box-shadow: inset 8px 8px 0 #00A6D1;
}
.keyboard__line {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  height: 25px;
  padding: 0 1px;
  transform: rotateZ(180deg);
  overflow: hidden;
}
.keyboard__line:nth-of-type(1) {
  animation: line 1s ease-in alternate infinite 0.1s;
}
.keyboard__line:nth-of-type(2) {
  animation: line 1s ease-in alternate infinite 0.2s;
}
.keyboard__line:nth-of-type(3) {
  animation: line 1s ease-in alternate infinite 0.3s;
}
.keyboard__line:nth-of-type(4) {
  animation: line 1s ease-in alternate infinite 0.4s;
}
.keyboard__line:nth-of-type(5) {
  animation: line 1s ease-in alternate infinite 0.5s;
}
.keyboard__line:nth-of-type(6) {
  animation: line 1s ease-in alternate infinite 0.6s;
}
.keyboard__line:nth-of-type(7) {
  animation: line 1s ease-in alternate infinite 0.7s;
}
.keyboard__line:nth-of-type(8) {
  animation: line 1s ease-in alternate infinite 0.8s;
}
.keyboard__line:nth-of-type(9) {
  animation: line 1s ease-in alternate infinite 0.9s;
}
.keyboard__line:nth-of-type(10) {
  animation: line 1s ease-in alternate infinite 1s;
}
.keyboard__dot {
  height: 6px;
  width: 6px;
  flex-shrink: 0;
  background-color: rgba(21, 21, 20, 0.3);
}
.keyboard__buttons {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  width: 60px;
  height: 80px;
  margin: 0 40px;
  padding: 5px 0;
}
.keyboard__button {
  height: 20px;
  width: 20px;
  margin: 0 3px;
  box-shadow: 4px 4px 0 #151514;
  background-color: #3CFBFE;
}
.keyboard__button:nth-of-type(2) {
  animation: button-1 1s infinite;
}
.keyboard__button:nth-of-type(3) {
  animation: button-1 2s infinite reverse;
}
.keyboard__button:nth-of-type(5) {
  animation: button-2 2s infinite;
}
.keyboard__button:nth-of-type(6) {
  animation: button-3 1.5s infinite;
}
.keyboard__speaker {
  width: 70px;
  height: 70px;
  background-color: #1A191C;
  border-radius: 50%;
  margin-bottom: 5px;
  background-image: radial-gradient(#1A191C 3px, transparent 3px);
  background-color: #3F3B43;
  background-position: 0 0, 4px 4px;
  background-size: 10px 10px;
}
.keyboard__f-bottom {
  position: relative;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-wrap: nowrap;
  width: 630px;
  height: 120px;
  margin: 0 auto;
  padding-top: 1px;
  background-color: #FFFFFF;
}

.key {
  position: relative;
  width: 30px;
  z-index: 1000;
}
.key:nth-of-type(1) {
  animation: key-down-white 0.5s infinite alternate 0.0666666667s;
}
.key:nth-of-type(2) {
  animation: key-down-white 0.5s infinite alternate 0.1333333333s;
}
.key:nth-of-type(3) {
  animation: key-down-white 0.5s infinite alternate 0.2s;
}
.key:nth-of-type(4) {
  animation: key-down-white 0.5s infinite alternate 0.2666666667s;
}
.key:nth-of-type(5) {
  animation: key-down-white 0.5s infinite alternate 0.3333333333s;
}
.key:nth-of-type(6) {
  animation: key-down-white 0.5s infinite alternate 0.4s;
}
.key:nth-of-type(7) {
  animation: key-down-white 0.5s infinite alternate 0.4666666667s;
}
.key:nth-of-type(8) {
  animation: key-down-white 0.5s infinite alternate 0.5333333333s;
}
.key:nth-of-type(9) {
  animation: key-down-white 0.5s infinite alternate 0.6s;
}
.key:nth-of-type(10) {
  animation: key-down-white 0.5s infinite alternate 0.6666666667s;
}
.key:nth-of-type(11) {
  animation: key-down-white 0.5s infinite alternate 0.7333333333s;
}
.key:nth-of-type(12) {
  animation: key-down-white 0.5s infinite alternate 0.8s;
}
.key:nth-of-type(13) {
  animation: key-down-white 0.5s infinite alternate 0.8666666667s;
}
.key:nth-of-type(14) {
  animation: key-down-white 0.5s infinite alternate 0.9333333333s;
}
.key:nth-of-type(15) {
  animation: key-down-white 0.5s infinite alternate 1s;
}
.key:nth-of-type(16) {
  animation: key-down-white 0.5s infinite alternate 1.0666666667s;
}
.key:nth-of-type(17) {
  animation: key-down-white 0.5s infinite alternate 1.1333333333s;
}
.key:nth-of-type(18) {
  animation: key-down-white 0.5s infinite alternate 1.2s;
}
.key:nth-of-type(19) {
  animation: key-down-white 0.5s infinite alternate 1.2666666667s;
}
.key:nth-of-type(20) {
  animation: key-down-white 0.5s infinite alternate 1.3333333333s;
}
.key:nth-of-type(21) {
  animation: key-down-white 0.5s infinite alternate 1.4s;
}
.key__front {
  width: 30px;
  height: 120px;
  transform: rotateY(0deg) translateZ(2px);
  background-color: #FFFFFF;
}
.key__front-1 {
  animation: key-down-color 0.5s infinite alternate 0.0666666667s;
}
.key__front-2 {
  animation: key-down-color 0.5s infinite alternate 0.1333333333s;
}
.key__front-3 {
  animation: key-down-color 0.5s infinite alternate 0.2s;
}
.key__front-4 {
  animation: key-down-color 0.5s infinite alternate 0.2666666667s;
}
.key__front-5 {
  animation: key-down-color 0.5s infinite alternate 0.3333333333s;
}
.key__front-6 {
  animation: key-down-color 0.5s infinite alternate 0.4s;
}
.key__front-7 {
  animation: key-down-color 0.5s infinite alternate 0.4666666667s;
}
.key__front-8 {
  animation: key-down-color 0.5s infinite alternate 0.5333333333s;
}
.key__front-9 {
  animation: key-down-color 0.5s infinite alternate 0.6s;
}
.key__front-10 {
  animation: key-down-color 0.5s infinite alternate 0.6666666667s;
}
.key__front-11 {
  animation: key-down-color 0.5s infinite alternate 0.7333333333s;
}
.key__front-12 {
  animation: key-down-color 0.5s infinite alternate 0.8s;
}
.key__front-13 {
  animation: key-down-color 0.5s infinite alternate 0.8666666667s;
}
.key__front-14 {
  animation: key-down-color 0.5s infinite alternate 0.9333333333s;
}
.key__front-15 {
  animation: key-down-color 0.5s infinite alternate 1s;
}
.key__front-16 {
  animation: key-down-color 0.5s infinite alternate 1.0666666667s;
}
.key__front-17 {
  animation: key-down-color 0.5s infinite alternate 1.1333333333s;
}
.key__front-18 {
  animation: key-down-color 0.5s infinite alternate 1.2s;
}
.key__front-19 {
  animation: key-down-color 0.5s infinite alternate 1.2666666667s;
}
.key__front-20 {
  animation: key-down-color 0.5s infinite alternate 1.3333333333s;
}
.key__front-21 {
  animation: key-down-color 0.5s infinite alternate 1.4s;
}
.key__back {
  width: 30px;
  height: 120px;
  transform: rotateY(180deg) translateZ(2px);
  background-color: #B2B3D2;
}
.key__right {
  width: 4px;
  height: 120px;
  transform: rotateY(90deg) translateZ(28px);
  background-color: #B2B3D2;
}
.key__left {
  width: 4px;
  height: 120px;
  transform: rotateY(-90deg) translateZ(2px);
  background-color: #FFFFFF;
}
.key__top {
  width: 30px;
  height: 4px;
  transform: rotateX(90deg) translateZ(2px);
  background-color: #B2B3D2;
}
.key__bottom {
  width: 30px;
  height: 4px;
  transform: rotateX(-90deg) translateZ(118px);
  background-color: #B2B3D2;
  border-left: 1px solid #2A2631;
}
.key--black {
  position: absolute;
  transform: translateZ(8px);
  border-bottom: none;
  z-index: 2000;
}
.key--black-1 {
  left: 15px;
}
.key--black-2 {
  left: 50px;
}
.key--black-3 {
  left: 110px;
}
.key--black-4 {
  left: 140px;
}
.key--black-5 {
  left: 170px;
}
.key--black-6 {
  left: 230px;
}
.key--black-7 {
  left: 260px;
}
.key--black-8 {
  left: 320px;
}
.key--black-9 {
  left: 350px;
}
.key--black-10 {
  left: 380px;
}
.key--black-11 {
  left: 440px;
}
.key--black-12 {
  left: 470px;
}
.key--black-13 {
  left: 530px;
}
.key--black-14 {
  left: 560px;
}
.key--black-1 {
  animation: key-down-black 0.5s infinite alternate 0.0666666667s;
}
.key--black-2 {
  animation: key-down-black 0.5s infinite alternate 0.1333333333s;
}
.key--black-3 {
  animation: key-down-black 0.5s infinite alternate 0.2s;
}
.key--black-4 {
  animation: key-down-black 0.5s infinite alternate 0.2666666667s;
}
.key--black-5 {
  animation: key-down-black 0.5s infinite alternate 0.3333333333s;
}
.key--black-6 {
  animation: key-down-black 0.5s infinite alternate 0.4s;
}
.key--black-7 {
  animation: key-down-black 0.5s infinite alternate 0.4666666667s;
}
.key--black-8 {
  animation: key-down-black 0.5s infinite alternate 0.5333333333s;
}
.key--black-9 {
  animation: key-down-black 0.5s infinite alternate 0.6s;
}
.key--black-10 {
  animation: key-down-black 0.5s infinite alternate 0.6666666667s;
}
.key--black-11 {
  animation: key-down-black 0.5s infinite alternate 0.7333333333s;
}
.key--black-12 {
  animation: key-down-black 0.5s infinite alternate 0.8s;
}
.key--black-13 {
  animation: key-down-black 0.5s infinite alternate 0.8666666667s;
}
.key--black-14 {
  animation: key-down-black 0.5s infinite alternate 0.9333333333s;
}
.key--black-15 {
  animation: key-down-black 0.5s infinite alternate 1s;
}
.key--black .key__front {
  width: 20px;
  height: 70px;
  transform: rotateY(0deg) translateZ(3px);
  background-color: #3F3B43;
  border-right: none;
}
.key--black .key__back {
  width: 20px;
  height: 70px;
  transform: rotateY(180deg) translateZ(3px);
  background-color: #2A2631;
}
.key--black .key__right {
  width: 6px;
  height: 70px;
  transform: rotateY(90deg) translateZ(16px);
  background-color: #1A191C;
  border-bottom: none;
}
.key--black .key__left {
  width: 6px;
  height: 70px;
  transform: rotateY(-90deg) translateZ(3px);
  background-color: #3F3B43;
}
.key--black .key__top {
  width: 20px;
  height: 6px;
  transform: rotateX(90deg) translateZ(3px);
  background-color: #3F3B43;
}
.key--black .key__bottom {
  width: 20px;
  height: 6px;
  transform: rotateX(-90deg) translateZ(67px);
  background-color: #1A191C;
}

/**/
@keyframes key-down-color {
  0% {
    background-color: #88fdfe;
  }
  30%, 100% {
    background-color: #FFFFFF;
  }
}
@keyframes key-down-white {
  0% {
    transform: translateZ(0px) rotateX(-1deg);
    transform-origin: center;
  }
  30%, 100% {
    transform: translateZ(3px) rotateX(0deg);
    transform-origin: center;
  }
}
@keyframes key-down-black {
  0% {
    transform-origin: center;
    transform: translateZ(9px);
  }
  30%, 100% {
    transform: translateZ(8px);
    transform-origin: center;
  }
}
@keyframes line {
  0%, 100% {
    height: 60%;
  }
  24% {
    height: 80%;
  }
  25%, 30% {
    height: 85%;
  }
  55%, 60% {
    height: 65%;
  }
  61%, 65% {
    height: 90%;
  }
  80%, 82% {
    height: 50%;
  }
  83%, 90% {
    height: 40%;
  }
  95% {
    height: 40%;
  }
}
@keyframes button-1 {
  0% {
    background-color: #3CFBFE;
  }
  50%, 100% {
    background-color: #B8ACFB;
  }
}
@keyframes button-2 {
  0%, 40% {
    background-color: #FFA862;
  }
  50%, 100% {
    background-color: #3CFBFE;
  }
}
@keyframes button-3 {
  0%, 40% {
    background-color: #00D27F;
  }
  50%, 100% {
    background-color: #3CFBFE;
  }
}
</style>

</head>
<body translate="no">
<div class="main">
<div class="keyboard">
<div class="keyboard__front face-keyboard">
<div class="keyboard__f-top">
<div class="keyboard__speaker"></div>
<div class="keyboard__buttons">
<div class="keyboard__button"></div>
<div class="keyboard__button"></div>
<div class="keyboard__button"></div>
<div class="keyboard__button"></div>
<div class="keyboard__button"></div>
<div class="keyboard__button"></div>
</div>
<div class="keyboard__led">
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
<div class="keyboard__dot"></div>
</div>
<div class="keyboard__line">
<div class="keyboard_.........完整代码请登录后点击上方下载按钮下载查看
纯css实现钢琴自动弹奏效果

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