css实现一个全屏下拉菜单效果代码-html代码-BFW代码库

css实现一个全屏下拉菜单效果代码

代码语言：html

代码描述：css实现一个全屏下拉菜单效果代码

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>
@import url(https://fonts.googleapis.com/css?family=Work+Sans:400,300,700|Open+Sans:400italic,300italic);
body {
  background-color: #fff;
  padding: 0;
  margin: 0;
}

.home {
  width: 100%;
  height: 100vh;
  position: relative;
  background-image: url(//repo.bfw.wiki/bfwrepo/image/5fd82faab9c8f.png?x-oss-process=image/auto-orient,1/resize,m_fill,w_800,h_600,/quality,q_90);
  background-size: cover;
  background-position: center center;
}


/* ====================================
Navigation 
==================================== */

.overlay-navigation {
  position: fixed;
  z-index: 99;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: hsla(0, 0%, 0%, 0.8);
  -webkit-transform: translateY(-100%);
          transform: translateY(-100%);
}

.overlay-slide-down {
  -webkit-transition: all .4s ease-in-out;
  transition: all .4s ease-in-out;
  -webkit-transform: translateY(0);
          transform: translateY(0)
}

.overlay-slide-up {
  -webkit-transition: all .8s ease-in-out;
  transition: all .8s ease-in-out;
  -webkit-transform: translateY(-100%);
          transform: translateY(-100%)
}

nav,
nav ul {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

nav ul {
  display: -webkit-box;
  display: flex;
  list-style: none;
}

nav ul li {
  flex-basis: 20%;
  -webkit-box-pack: center;
          justify-content: center;
 .........完整代码请登录后点击上方下载按钮下载查看