好、快、便宜定律模拟动画-html代码-BFW代码库

好、快、便宜定律模拟动画

代码语言：html

所属分类：动画

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 rel='stylesheet' href='https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,700&amp;display=swap'>
<style>
* {
  box-sizing: border-box;
}

body {
  font-family: "Source Sans Pro", Verdana, sans-serif;
  margin: 0;
  min-height: 100vh;
  overflow: hidden;
  background: -webkit-gradient(linear, left top, left bottom, color-stop(50%, #5c627d), to(#2e3255));
  background: linear-gradient(#5c627d 50%, #2e3255);
}

button {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  outline: none;
}

.app {
  position: relative;
  margin: 0 auto;
  max-width: 800px;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: center;
          justify-content: center;
  -webkit-box-align: center;
          align-items: center;
  min-height: 100vh;
  flex-wrap: wrap;
  font-size: 18px;
}

.btn {
  font-size: inherit;
  background: none;
  cursor: pointer;
  border-radius: 70px;
  width: 70px;
  height: 70px;
  text-transform: uppercase;
  background: transparent;
  -webkit-transform: translateZ(0);
          transform: translateZ(0);
  outline: none;
  border: none;
  font-weight: bold;
  color: transparent;
  font-size: inherit;
  box-shadow: 0px 10px 13px -6px rgba(0, 0, 0, 0.2), 0px 20px 31px 3px rgba(0, 0, 0, 0.14), 0px 8px 38px 7px rgba(0, 0, 0, 0.12);
}
.btn.display {
  font-weight: bold;
  display: block;
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
  box-shadow: none;
  text-align: center;
  line-height: 70px;
  font-size: inherit;
  color: white;
}

.btn-clicked {
  pointer-events: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 50%;
  opacity: 0.5;
  -webkit-animation: btn-clicked 500ms forwards;
          animation: btn-clicked 500ms forwards;
}

@-webkit-keyframes btn-clicked {
  100% {
    opacity: 0;
    -webkit-transform: scale(1.5);
            transform: scale(1.5);
  }
}

@keyframes btn-clicked {
  100% {
    opacity: 0;
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