css实现自适应metro风格菜单弹出效果代码-html代码-BFW代码库

代码语言：html
代码描述：css实现自适应metro风格菜单弹出效果代码
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">

  
<style>
@charset "UTF-8";
@import url("https://fonts.googleapis.com/css?family=Open+Sans:300,700|Shrikhand");
* {
  box-sizing: border-box;
}

body {
  font-family: 'Open Sans', sans-serif;
  font-size: 1rem;
  line-height: 1.4;
  background-image: url(//repo.bfw.wiki/bfwrepo/image/5fc1a9b3bd22e.png);
  background-size: cover;
}
@media (min-width: 450px) {
  body {
    font-size: 1.25rem;
  }
}

.page-header {
  display: -webkit-box;
  display: flex;
  flex-wrap: wrap;
  -webkit-box-pack: justify;
          justify-content: space-between;
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  overflow: visible;
  padding: 1rem;
  z-index: 200;
}

.page-content {
  display: -webkit-box;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
          flex-direction: column;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
  padding: 1rem;
  min-height: 100vh;
  text-align: center;
  color: white;
}

.page-tagline {
  font-size: 0.75rem;
  font-weight: 700;
  z-index: 100;
}
.page-tagline a {
  color: #123965;
  text-decoration: none;
}

.page-title {
  margin-bottom: 1.5rem;
  font-family: 'Shrikhand', serif;
  font-size: 2rem;
  line-height: 1.2;
}
@media (min-width: 450px) {
  .page-title {
    font-size: 3rem;
  }
}

nav {
  display: -webkit-box;
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
  padding: 3rem 1rem 1rem;
  width: 100vw;
  min-height: 100vh;
  text-align: center;
  background-color: white;
  opacity: 0;
  -webkit-transform: translateY(-100%);
          transform: translateY(-100%);
  -webkit-transition: opacity 0.45s 0.45s ease, -webkit-transform 0s 1.2s;
  transition: opacity 0.45s 0.45s ease, -webkit-transform 0s 1.2s;
  transition: opacity 0.45s 0.45s ease, transform 0s 1.2s;
  transition: opacity 0.45s 0.45s ease, transform 0s 1.2s, -webkit-transform 0s 1.2s;
}

.menu ol {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 1rem;
  width: 100%;
}
@media (min-width: 820px) {
  .menu ol {
    grid-template-columns: repeat(4, 1fr);
  }
}
.menu ol li {
  display: grid;
  grid-column: span 1;
  grid-gap: 1rem;
  overflow: hidden;
}
.menu ol a {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  -webkit-box-pack: center;
          justify-content: center;
  padding: 1rem;
  width: 100%;
  height: 100%;
  font-size: 1.25rem;
  text-decoration: none;
  color: #2269BB;
  background-color: #2269BB;
  border-radius: 2px;
}
@media (min-width: 450px) {
  .menu ol a {
    font-size: 1.75rem;
  }
}

.menu > ol > li:nth-child(n + 3) {
  grid-column: span 2;
}

.menu .sub-menu {
  padding: 0;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 500px) {
  .menu .sub-menu {
    grid-template-columns: repeat(3, 1fr);
  }
}
.menu .sub-menu li a {
  font-size: 0.85rem;
  color: #16457a;
  background-color: #16457a;
}
@media (min-width: 450px) {
  .menu .sub-menu li a {
    font-size: 1rem;
  }
}
.menu .sub-menu li:nth-child(3n) {
  grid-column: span 2;
}
@media (min-width: 500px) {
  .menu .sub-menu li:nth-child(3n) {
    grid-column: span 1;
  }
}

.menu-toggle {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-gap: 2px;
  position: relative;
  cursor: pointer;
  width: 28px;
  height: 22px;
  z-index: 100;
}
.menu-toggle:before {
  content: '×';
  position: absolute;
  top: 0;
  left: 0;
  font-size: 2.4rem;
  line-height: 0.4;
  color: #123965;
  z-index: 2;
  opacity: 0;
  -webkit-transition: opacity 0.3s ease;
  transition: opacity 0.3s ease;
}
.menu-toggle span {
  display: block;
  position: relative;
  width: 100%;
  height: 2px;
  background-color: #123965;
  border-radius: 2px;
  -webkit-transition: -webkit-transform 0.3s ease;
  transition: -webkit-transform 0.3s ease;
  transition: transform 0.3s ease;
  transition: transform 0.3s ease, -webkit-transform 0.3s ease;
  -webkit-transform-origin: 100% 100%;
          transform-origin: 100% 100%;
}
.menu-toggle span:nth-child(1) {
  -webkit-transition-delay: 0.35s;
          transition-delay: 0.35s;
}
.menu-toggle span:nth-child(2) {
  -webkit-transition-delay: 0.4s;
          transition-delay: 0.4s;
}
.menu-toggle span:nth-child(3) {
  -webkit-transition-delay: 0.45s;
          transition-delay: 0.45s;
}
.menu-toggle span:nth-child(4) {
  -webkit-transition-delay: 0.5s;
          transition-delay: 0.5s;
}
.menu-toggle span:nth-child(5) {
  -webkit-transition-delay: 0.55s;
          transition-delay: 0.55s;
}
.menu-toggle span:nth-child(6) {
  -webkit-transition-delay: 0.6s;
          transition-delay: 0.6s;
}
.menu-toggle span:nth-child(1), .menu-toggle span:nth-child(2) {
  grid-column: span 3;
}
.menu-toggle span:nth-child(3), .menu-toggle span:nth-child(6) {
  grid-column: span 2;
}
.menu-toggle span:nth-child(4), .menu-toggle span:nth-child(5) {
  grid-column: span 4;
}

#menu-toggle-input {
  display: none;
}
#menu-toggle-input:checked ~ .menu-toggle span {
  -webkit-transform: scaleX(0);
          transform: scaleX(0);
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(1) {
  -webkit-transition-delay: 0.05s;
          transition-delay: 0.05s;
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(2) {
  -webkit-transition-delay: 0.1s;
          transition-delay: 0.1s;
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(3) {
  -webkit-transition-delay: 0.15s;
          transition-delay: 0.15s;
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(4) {
  -webkit-transition-delay: 0.2s;
          transition-delay: 0.2s;
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(5) {
  -webkit-transition-delay: 0.25s;
          transition-delay: 0.25s;
}
#menu-toggle-input:checked ~ .menu-toggle span:nth-child(6) {
  -webkit-transition-delay: 0.3s;
          transition-delay: 0.3s;
}
#menu-toggle-input:checked ~ .menu-toggle:before {
  opacity: 1;
  -webkit-transition-delay: 0.75s;
          transition-delay: 0.75s;
}
#menu-toggle-input:checked ~ nav {
  opacity: 1;
  -webkit-transform: translateY(0);
          transform: translateY(0);
  -webkit-transition-delay: 0s;
          transition-delay: 0s;
}
#menu-toggle-input:checked ~ nav a {
  color: white;
  -webkit-transform: translate(0, 0);
          transform: translate(0, 0);
}
#menu-toggle-input:checked ~ nav > ol > li:nth-child(1) > a {
  -webkit-transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.35s ease;
  transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.35s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.35s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.35s ease, -webkit-transform 0.3s 0.35s ease;
}
#menu-toggle-input:checked ~ nav .sub-menu > li:nth-child(1) > a {
  -webkit-transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.5s ease;
  transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.5s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.5s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.5s ease, -webkit-transform 0.3s 0.5s ease;
}
#menu-toggle-input:checked ~ nav > ol > li:nth-child(2) > a {
  -webkit-transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.4s ease;
  transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.4s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.4s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.4s ease, -webkit-transform 0.3s 0.4s ease;
}
#menu-toggle-input:checked ~ nav .sub-menu > li:nth-child(2) > a {
  -webkit-transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.55s ease;
  transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.55s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.55s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.55s ease, -webkit-transform 0.3s 0.55s ease;
}
#menu-toggle-input:checked ~ nav > ol > li:nth-child(3) > a {
  -webkit-transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.45s ease;
  transition: color 0.3s 0.825s, -webkit-transform 0.3s 0.45s ease;
  transition: color 0.3s 0.825s, transform 0.3s 0.45s ease;
  transition: color 0.3s 0.825s, transfo.........完整代码请登录后点击上方下载按钮下载查看