《前端如何实现Aniplex动画效果》

发表于 分类于 ， Valine：

html 部分

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<div class="box">
  <div class="chars">A</div>
  <div class="chars">N</div>
  <div class="chars">I</div>
  <div class="chars">P</div>
  <div class="chars">L</div>
  <div class="chars">E</div>
  <div class="chars">X</div>
  <div class="ll a"></div>
  <div class="ll n"></div>
  <div class="ll i"></div>
  <div class="ll p"></div>
  <div class="ll l"></div>
  <div class="ll e"></div>
  <div class="ll x"></div>
  <div class="pcov"></div>
</div>

css 部分

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* {
  /* 初始化 取消页面内外边距 */
  margin: 0;
  padding: 0;
}
.box {
  background-color: #000;
  /* 100%窗口宽度和高度 */
  width: 100vw;
  height: 100vh;
  /* 弹性布局 水平、垂直居中 */
  display: flex;
  justify-content: center;
  align-items: center;
  /* 横向排列 */
  flex-direction: row;
  /* 将平面图形转换为具有透视的3D图形 */
  perspective: 300;
  -webkit-perspective: 300;
  overflow: hidden;
}
/* 动画字符所在的块 */
.chars {
  color: #fff;
  /* 相对定位 */
  position: relative;
  width: 60px;
  height: 60px;
  text-align: center;
  line-height: 60px;
  font-size: 54px;
  font-weight: 900;
  /* 斜体 */
  font-style: italic;
  margin: 0 10px;
  opacity: 0;
}
/* 字符外的方框 */
.ll {
  /* 绝对定位 */
  position: absolute;
  margin-left: -480px;
  width: 60px;
  height: 60px;
  border-radius: 3px;
  opacity: 0;
}
.x {
  border: 4px solid #f5b5fc;
  /* 执行动画：动画名称 时长 线性的 停留在最后一帧 */
  animation: xmove 2s linear forwards;
}
.e {
  border: 4px solid #96f7d2;
  animation: emove 2s linear forwards;
  /* 设置动画延迟 */
  animation-delay: 0.1s;
}
.l {
  border: 4px solid #f0f696;
  animation: lmove 2s linear forwards;
  animation-delay: 0.2s;
}
.p {
  border: 4px solid #fcb1b1;
  animation: pmove 2s linear forwards;
  animation-delay: 0.3s;
}
.i {
  border: 4px solid #f0f696;
  animation: imove 2s linear forwards;
  animation-delay: 0.4s;
}
.n {
  border: 4px solid #96f7d2;
  animation: nmove 2s linear forwards;
  animation-delay: 0.5s;
}
.a {
  border: 4px solid #f5b5fc;
  animation: amove 2s linear forwards;
  animation-delay: 0.6s;
}
/* 正中间的一条线 */
.pcov {
  position: absolute;
  width: 4px;
  height: 60px;
  background-color: #fcb1b1;
  opacity: 0;
  animation: showp forwards;
  animation-delay: 2.3s;
}

/* 定义动画 */
/* 显示正中间的那条线 */
@keyframes showp {
  from {
    opacity: 0;
  }
  to {
    transform: scale(1, 2);
    opacity: 1;
  }
}
/* A字符外方框的动画 */
@keyframes amove {
  0% {
    opacity: 1;
    transform: rotateY(0deg);
  }
  50% {
    transform: rotateY(180deg);
  }
  100% {
    opacity: 1;
    transform: rotateY(360deg);
  }
}
/* N字符外方框的动画 */
@keyframes nmove {
  30% {
    opacity: 1;
    transform: translate(30px) rotateY(135deg) scale(1.1, 1.1);
  }
  60% {
    transform: translate(50px) rotateY(45deg) scale(1.1, 1.1);
  }
  85% {
    transform: translate(80px) rotateY(103deg) scale(1.2, 1.2);
  }
  100% {
    opacity: 1;
    z-index: -99;
    transform: translate(80px) rotateY(77deg) scale(1.2, 1.2);
  }
}
/* I字符外方框的动画 */
@keyframes imove {
  30% {
    opacity: 1;
    transform: translate(60px) rotateY(135deg) scale(1.2, 1.2);
  }
  60% {
    transform: translate(120px) rotateY(45deg) scale(1.3, 1.3);
  }
  85% {
    transform: translate(160px) rotateY(103deg) scale(1.3, 1.3);
  }
  100% {
    opacity: 1;
    transform: translate(164px) rotateY(77deg) scale(1.3, 1.3);
  }
}
/* P字符外方框的动画 */
@keyframes pmove {
  30% {
    opacity: 1;
    transform: translate(60px) rotateY(135deg) scale(1.2, 1.2);
  }
  60% {
    transform: translate(120px) rotateY(45deg) scale(1.4, 1.4);
  }
  85% {
    transform: translate(240px) rotateY(135deg) scale(1.6, 1.6);
  }
  100% {
    opacity: 1;
    transform: translate(240px) rotateY(90deg) scale(1.6, 1.6);
  }
}
/* L字符外方框的动画 */
@keyframes lmove {
  33% {
    opacity: 1;
    transform: translate(80px) rotateY(135deg) scale(1.2, 1.2);
  }
  66% {
    transform: translate(240px) rotateY(45deg) scale(1.6, 1.6);
  }
  95% {
    transform: translate(320px) rotateY(100deg) scale(1.4, 1.4);
  }
  100% {
    opacity: 1;
    transform: translate(320px) rotateY(103deg) scale(1.3, 1.3);
  }
}
/* E字符外方框的动画 */
@keyframes emove {
  33% {
    opacity: 1;
    transform: translate(80px) rotateY(135deg) scale(1.2, 1.2);
  }
  66% {
    transform: translate(240px) rotateY(45deg) scale(1.6, 1.6);
  }
  95% {
    transform: translate(390px) rotateY(135deg) scale(1.2, 1.2);
  }
  100% {
    opacity: 1;
    transform: translate(402px) rotateY(103deg) scale(1.2, 1.2);
  }
}
/* X字符外方框的动画 */
@keyframes xmove {
  25% {
    opacity: 1;
    transform: translate(100px) rotateY(135deg) scale(1.2, 1.2);
  }
  50% {
    transform: translate(260px) rotateY(45deg) scale(1.6, 1.6);
  }
  85% {
    transform: translate(400px) rotateY(135deg) scale(1.2, 1.2);
  }
  100% {
    opacity: 1;
    transform: translate(484px) rotateY(0deg) scale(1, 1);
  }
}
/* 前两个字符的动画 */
@keyframes show12 {
  0% {
    opacity: 1;
    transform: rotateY(0deg);
  }
  100% {
    opacity: 1;
    transform: rotateY(360deg);
  }
}
/* 第3个及之后的字符的动画 */
@keyframes show3 {
  0% {
    opacity: 1;
    transform: rotateY(90deg);
  }
  100% {
    opacity: 1;
    transform: rotateY(360deg);
  }
}

/* 为每个字符添加动画 */
.box div:nth-child(1) {
  animation: show12 1.2s linear forwards;
  animation-iteration-count: 2;
  animation-delay: 0.2s;
}
.box div:nth-child(2) {
  animation: show12 1.2s linear forwards;
  animation-iteration-count: 2;
  animation-delay: 0.4s;
}
.box div:nth-child(3) {
  animation: show3 1s linear 1 forwards;
  animation-delay: 0.7s;
}
.box div:nth-child(4) {
  animation: show3 1s linear 1 forwards;
  animation-delay: 0.9s;
}
.box div:nth-child(5) {
  animation: show3 1s linear 1 forwards;
  animation-delay: 1.1s;
}
.box div:nth-child(6) {
  animation: show3 1.2s linear 1 forwards;
  animation-delay: 1.3s;
}
.box div:nth-child(7) {
  animation: show3 1.2s linear 1 forwards;
  animation-delay: 1.6s;
}