纯css实现导航条滚动后固定和锚点导航-html代码-BFW代码库

代码语言：html

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 type="text/css" rel="stylesheet" href="http://repo.bfw.wiki/bfwrepo/css/normalize.css">
<style>
html, body {
  height: 100%;
  max-height: 100%;
  overflow: auto;
  scroll-behavior: smooth;
}

*, input {
  box-sizing: border-box;
}

.site-wrapper {
  padding-top: 30px;
}
.site-wrapper:before {
  content: '';
  display: block;
  height: 10px;
  width: 100%;
  position: absolute;
  z-index: 999;
  top: 50px;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.1) 100%);
}

[class*="button"] {
  display: block;
  padding: 10px 20px;
  box-shadow: inset 0 0 0 1px #005d80;
  margin-left: 5px;
  border-radius: 5px;
  text-decoration: none;
  color: #005d80;
}
[class*="button"]:hover {
  color: #00baff;
  box-shadow: inset 0 0 0 1px #00baff;
}
[class*="button"][class*="-prominent"] {
  background-color: #005d80;
  color: white;
  box-shadow: none;
  border: none;
}
[class*="button"][class*="-prominent"]:hover {
  background-color: #00baff;
}

.login-form {
  position: absolute;
  top: 0;
  background: white;
  height: 50px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: translateY(-100px);
  opacity: 0;
  transition: .25s ease-in-out;
}
.login-form input {
  padding: 0 10px;
  height: 38px;
  border: 1px solid #cccccc;
  margin-left: 5px;
  border-radius: 5px;
}

#show-login {
  position: fixed;
  transform: translateX(-4000px);
}
#show-login:checked + nav {
  opacity: 0;
}
#show-login:checked ~ .login-form {
  transform: translateY(0);
  opacity: 1;
}

header {
  position: sticky;
  z-index: 1000;
  top: 0;
  background: white;
}
header nav {
  height: 50px;
  margin-bottom: 30px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  max-width: calc(1200px + 40px);
  transition: .25s ease-in-out;
}
header nav ul {
  list-style-type: none;
  display: flex;
  padding: 0 0 0 20px;
  margin: 0;
  margin-right: auto;
}
header nav ul li {
  margin-right: 20px;
}
header nav ul li a {
  text-decoration: none;
  color: #00baff;
}
header nav ul li a:hover {
  text-decoration: underline;
}
header .logo {
  display: block;
  height: 30px;
  width: 30px;
  overflow: hidden;
}
header .logo .logo-mark {
  display: block;
  height: 30px;
  width: 60px;
  border: 3px solid #005d80;
  border-radius: 30px;
  transform: translateX(-30px);
  transition: .25s ease-in-out;
}
header .logo:hover .logo-mark {
  border-color: #00baff;
  transform: translateX(0);
}

.cta {
  text-align: center;
  padding: 100px 0;
  margin-bottom: -20px;
  overflow: hidden;
  position: relative;
}
.cta .cta-background {
  position: absolute;
  z-index: 0;
  top: 0;
  min-height: 100%;
  width: 100%;
  left: 0;
}
.cta h1 {
  position: relative;
  z-index: 1;
  color: white;
  text-shadow: 0 3px 3px rgba(0, 0, 0, 0.3);
}

main {
  padding: 0 70px;
}
main h2 {
  color: #005d80;
  margin: 0;
  padding-top: 70px;
}
main h2, main p {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

footer {
  margin-top: 70px;
  padding: 40px;
  background: rgba(0, 93, 128, 0.1);
}
footer .footer-elements {
  max-width: 1200px;
  margin: 0 auto;
}
</style>

</head>
<body translate="no">
<div class="site-wrapper" id="home">
<header>
<input type="checkbox" id="show-login" />
<nav class="site-nav">
<a href="#home" class="logo">
<span class="logo-mark"></span>
</a>
<ul>
<li><a href="#products">Products</a></li>
<li><a href="#pricing">Pricing</a></li>
<li><a href="#faq">FAQ</a></li>
</ul>
<label class="button" for="show-login">Log In</label>
<a href="#0" class="button-prominent">Sign Up</a>
</nav>
<form class="login-form"&.........完整代码请登录后点击上方下载按钮下载查看

纯css实现导航条滚动后固定和锚点导航

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