纯css实现flash过渡到css3动画的效果-html代码-BFW代码库

代码语言：html

所属分类：动画

代码描述：纯css实现flash过渡到css3动画的效果

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">
  

<link href="https://fonts.googleapis.com/css2?family=Mountains+of+Christmas&display=swap" rel="stylesheet">



  
  
<style>
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  background-color: #111;
  display: grid;
  place-content: center;
  grid-template-areas: "screen";
  color: #fff;
  font-family: "Mountains of Christmas", cursive;
  font-weight: 300;
}
body > * {
  grid-area: screen;
}

.loader {
  text-align: center;
  font-size: 2.5rem;
  -webkit-animation: fadeOut 180ms 3.8s linear forwards;
          animation: fadeOut 180ms 3.8s linear forwards;
  place-self: center;
  font-style: italic;
}
.loader strong {
  font-weight: bold;
  color: #fe0000;
}
.loader strong::before {
  content: counter(count);
  -webkit-animation: loader 3.5s 0.75s linear forwards;
          animation: loader 3.5s 0.75s linear forwards;
  counter-reset: count 0;
}
.loader__bar {
  height: 30vh;
  width: 60vw;
  box-shadow: 0 0 0 3px #111, 0 0 0 6px #fe0000;
  border-radius: 1px;
  margin-bottom: 1rem;
  display: grid;
  grid-template-areas: "bar";
}
.loader__bar::after {
  content: "";
  grid-area: bar;
  -webkit-animation: bar 3s 0.75s linear forwards;
          animation: bar 3s 0.75s linear forwards;
  background-image: -webkit-gradient(linear, left top, right top, from(white), to(black));
  background-image: linear-gradient(to right, white, black);
  -webkit-clip-path: inset(0 100% 0 0);
          clip-path: inset(0 100% 0 0);
}

.stage {
  width: 800px;
  height: 600px;
  display: grid;
  place-items: center;
  grid-template-areas: "stage";
  overflow: hidden;
}
.stage > * {
  grid-area: stage;
  text-align: center;
}

.logo {
  font-family: "Verdana";
  font-style: italic;
  align-self: center;
  font-size: 33rem;
  color: #fe0000;
  -webkit-transform: skew(-6deg) rotate3d(1, 0, 0, 25deg);
          transform: skew(-6deg) rotate3d(1, 0, 0, 25deg);
}
.logo::before, .logo::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  color: #890f0f;
  z-index: -1;
  opacity: 0;
}
.logo::before {
  content: "S";
  -webkit-transform: translate(-13%, -12%);
          transform: translate(-13%, -12%);
  -webkit-animation: fadeInUpS 2s 5.25s linear forwards;
          animation: fadeInUpS 2s 5.25s linear forwards;
}
.logo::after {
  content: "C";
  -webkit-transform: translate(1.5%, 6%);
          transform: translate(1.5%, 6%);
  -webkit-animation: fadeInUpC 2s 5.25s linear forwards;
          animation: fadeInUpC 2s 5.25s linear forwards;
}
.logo span {
  background: #fe0000;
  background-image: linear-gradient(-160deg, #fe0000 17.5%, yellow 18%, #fe0000 18.5%, #fe0000 100%);
  background-size: 600% 300%;
  display: inline-block;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.logo span:first-child {
  -webkit-transform: translate(250%, -15%);
          transform: translate(250%, -15%);
  -webkit-animation: s 3.25s 4s ease-in forwards, shine 1.5s 5.5s linear forwards;
          animation: s 3.25s 4s ease-in forwards, shine 1.5s 5.5s linear forwards;
}
.logo span:last-child {
  -webkit-transform: translate(-250%, 3%);
          transform: translate(-250%, 3%);
  -webkit-animation: c 3.25s 4s ease-in forwards, shine 1.5s 5.5s linear forwards;
          animation: c 3.25s 4s ease-in forwards, shine 1.5s 5.5s linear forwards;
}

header {
  z-index: 1;
}

h1,
p {
  text-shadow: -0.025em 0.025em #222;
  opacity: 0;
}

h1 {
  font-size: 6rem;
  font-weight: 300;
  line-height: 1.25;
  color: #fe0000;
  -webkit-animation: fadeIn 0.25s 7s linear forwards;
          animation: fadeIn 0.25s 7s linear forwards;
}

p {
  font-size: 3rem;
  -webkit-animation: fadeIn 0.25s 8s linear forwards;
          animation: fadeIn 0.25s 8s linear forwards;
}

@-webkit-keyframes loader {
  0% {
    counter-increment: count 0;
  }
  10% {
    counter-increment: count 10;
  }
  20% {
    counter-increment: count 32;
  }
  25% {
    counter-increment: count 55;
  }
  35% {
    counter-increment: count 63;
  }
  45% {
    counter-increment: count 95;
  }
  100% {
    counter-increment: count 100;
  }
}

@keyframes loader {
  0% {
    counter-increment: count 0;
  }
  10% {
    counter-increment: count 10;
  }
  20% {
    counter-increment: count 32;
  }
  25% {
    counter-increment: count 55;
  }
  35% {
    counter-increment: count 63;
  }
  45% {
    counter-increment: count 95;
  }
  100% {
    counter-increment: count 100;
  }
}
@-webkit-keyframes bar {
  0% {
    -webkit-clip-path: inset(0 100% 0 0);
            clip-path: inset(0 100% 0 0);
  }
  10% {
    -webkit-clip-path: inset(0 90% 0 0);
            clip-path: inset(0 90% 0 0);
  }
  20% {
    -webkit-clip-path: inset(0 68% 0 0);
            clip-path: inset(0 68% 0 0);
  }
  25% {
    -webkit-clip-path: inset(0 45% 0 0);
            clip-path: inset(0 45% 0 0);
  }
  35% {
    -webkit-clip-path: inset(0 37% 0 0);
            clip-path: inset(0 37% 0 0);
  }
  45% {
    -webkit-clip-path: inset(0 5% 0 0);
            clip-path: inset(0 5% 0 0);
  }
  100% {
    -webkit-clip-path: inset(0 0% 0 0);
            clip-path: inset(0 0% 0 0);
  }
}
@keyframes bar {
  0% {
    -webkit-clip-path: inset(0 100% 0 0);
            clip-path: inset(0 100% 0 0);
  }
  10% {
    -webkit-clip-path: inset(0 90% 0 0);
            clip.........完整代码请登录后点击上方下载按钮下载查看