div+css实现俄罗斯方块loading加载动画效果代码-html代码-BFW代码库

div+css实现俄罗斯方块loading加载动画效果代码

代码语言：html

代码描述：div+css实现俄罗斯方块loading加载动画效果代码

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">

  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
<style>
    *,
*:before,
*:after {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --bg: hsl(var(--hue),10%,90%);
  --fg: hsl(var(--hue),10%,10%);
  --red: hsl(3,90%,50%);
  --orange: hsl(33,90%,50%);
  --yellow: hsl(48,90%,50%);
  --green: hsl(123,90%,40%);
  --cyan: hsl(183,90%,40%);
  --blue: hsl(243,90%,50%);
  --purple: hsl(273,90%,50%);
  --trans-dur: 0.3s;
  font-size: calc(14px + (60 - 14) * (100vw - 280px) / (3840 - 280));
}

body {
  background-color: var(--bg);
  color: var(--fg);
  display: flex;
  font: 1em/1.5 sans-serif;
  height: 100vh;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

main {
  margin: auto;
  padding: 1.5em 0;
}

.tetris {
  animation-name: bounce;
  position: relative;
  width: 10em;
  height: 10.5em;
}
.tetris:after {
  background-color: hsl(var(--hue), 10%, 70%);
  content: "";
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0.5em;
  transition: background-color var(--trans-dur);
}
.tetris, .tetris__block, .tetris__block-cell {
  animation-duration: 4s;
  animation-timing-function: cubic-bezier(0.65, 0, 0.35, 1);
  animation-iteration-count: infinite;
}
.tetris__block {
  display: grid;
  position: absolute;
  top: 0;
  left: 0;
  transform-origin: 1em 1em;
}
.tetris__block-cell {
  border: 0.25em solid rgba(0, 0, 0, 0);
  border-top-color: rgba(255, 255, 255, 0.3);
  border-right-color: rgba(0, 0, 0, 0.1);
  border-bottom-color: rgba(0, 0, 0, 0.1);
  border-left-color: rgba(255, 255, 255, 0.1);
}
.tetris__block-cell:nth-child(1) {
  grid-area:.........完整代码请登录后点击上方下载按钮下载查看