css实现全屏下拉卡片菜单效果代码-html代码-BFW代码库

代码语言：html

代码描述：css实现全屏下拉卡片菜单效果代码

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">
  


  <link rel='stylesheet' href='https://fonts.googleapis.com/css2?family=Exo+2:wght@400;600&amp;display=swap'>
  
<style>
* {
	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%);
	--primary: hsl(var(--hue),90%,55%);
	--trans-dur: 0.3s;
	font-size: calc(16px + (20 - 16) * (100vw - 320px) / (1280 - 320));
}
body {
	background-color: var(--bg);
	color: var(--fg);
	font: 1em/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, sans-serif;
	width: 100vw;
	height: 100vh;
	overflow-x: hidden;
	transition:
		background-color var(--trans-dur),
		color var(--trans-dur);
}
main {
	margin: auto;
	padding: 5.5em 1.5em 1.5em 1.5em;
	max-width: 35em;
}
h1 {
	font-size: 2em;
	margin: 0 0 1.5rem;
}
p {
	margin-bottom: 1.5em;
}
.no-scroll {
	overflow: hidden;
}
.nav {
	font-family: "Exo 2", sans-serif;
	position: fixed;
	top: 0;
	text-align: center;
	text-transform: uppercase;
	width: 100vw;
}
.nav__arrow,
.nav__items {
	z-index: 0;
}
.nav__arrow,
.nav__item {
	color: hsl(0,0%,0%,0.7);
}
.nav__arrow {
	display: block;
	pointer-events: none;
	position: absolute;
	top: 3em;
	left: calc(50% - 0.375em);
	width: 0.75em;
	height: 0.375em;
	transition:
		opacity 0.15s 0.15s ease-in-out,
		transform 0.15s 0.15s ease-in-out;
}
.nav__items {
	list-style: none;
	position: relative;
	width: inherit;
}
.nav__item {
	background-color: hsl(var(--hue),90%,70%);
	box-shadow: 0 0 0 hsla(0,0%,0%,0.3);
	font-size: 0.75em;
	font-weight: 600;
	letter-spacing: 0.25em;
	position: absolute;
	width: 100%;
	height: 25vh;
	min-height: 8rem;
	transition:
		box-shadow var(--trans-dur) ease-in-out,
		transform var(--trans-dur) ease-in-out,
		visibility var(--trans-dur) steps(1);
	transform: translateY(calc(-100% + 4rem));
	visibility: hidden;
	z-index: 0;
}
.nav__item:nth-of-type(2) {
	background-color: hsl(3,90%,70%);
	z-index: -1;
}
.nav__item:nth-of-type(3) {
	background-color: hsl(33,90%,70%);
	z-index: -2;
}
.nav__item:nth-of-type(4) {
	background-color: hsl(153,90%,40%);
	z-index: -3;
}
.nav__item-link {
	background-color: hsla(0,0%,100%,0);
	color: inherit;
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	align-items: center;
	padding: 1.5rem;
	text-decoration: none;
	transition: background-color 0.15s ease-in-out;
	width: 100%;
	height: 100%;
}
.nav__item-link:focus {
	background-color: hsla(0,0%,100%,0.2);
	outline: transparent;
}
.nav__item-icon {
	display: block;
	margin: 0 auto 1.5em;
	opacity: 0;
	pointer-events: none;
	width: 2em;
	height: 2em;
	transition:
		opacity var(--trans-dur) ease-in-out,
		transform var(--trans-dur) ease-in-out;
	transform: scale(0);
}
.nav--open {
	overflow-x: hidden;
	overflow-y: auto;
	height: 100%;
}
.nav--open .nav__arrow {
	opacity: 0;
	transform: scale(0);
	transition-delay: 0s;
}
.nav--open .nav__item-icon {
	opacity: 1;
	transform: scale(1);
	transition-delay: 0.05s;
	transition-timing-function: cubic-bezier(0.42,0,0.58,1.5);
}
.nav--open .nav__item {
	box-shadow: 0 0.5em 0.5em hsla(0,0%,0%,0.3);
	transform: translateY(0);
	transition-duration: var(--trans-dur), var(--trans-dur), 0s;
	visibility: visible;
}
.nav--open .nav__item:nth-of-type(2) {
	transform: translateY(100%);
}
.nav--open .nav__item:nth-of-type(2) .nav__item-icon {
	transition-delay: 0.1s;
}
.nav--open .nav__item:nth-of-type(3) {
	transform: translateY(200%);
}
.nav--open .nav__item:nth-of-type(3) .nav__item-icon {
	transition-delay: 0.15s;
}
.nav--open .nav__item:nth-of-type(4) {
	transform: translateY(300%);
}
.nav--open .nav__item:nth-of-type(4) .nav__item-icon {
	transition-delay: 0.2s;
}
.nav:not(.nav--open) .nav__item--active {
	box-shadow: 0 0.5em 0.5em hsla(0,0%,0%,0.3);
	visibility: visible;
	z-index: 1;
}

/* `:focus-visible` support */
@supports selector(:focus-visible) {
	.nav__item-link:focus {
		background-color: hsla(0,0%,100%,0);
	}
	.nav__item-link:focus-visible {
		background-color: hsla(0,0%,100%,0.2);
	}
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
	:root {
		--bg: hsl(var(--hue),10%,20%);
		--fg: hsl(var(--hue),10%,90%);
	}
}
</style>


</head>

<body >
  <svg display="none">
	<symbol id="home" viewBox="0 0 32 32">
		<g fill="currentColor">
			<polygon points="16 0,0 10,0 32,10 32,10 16,22 16,22 32,32 32,32 10"/>
		</g>
	</symbol>
	<symbol id="portfolio" viewBox="0 0 32 32">
		<g fill="currentColor">
			<path d="M30,8h-6v-2c0-1.1-.9-2-2-2H10c-1.1,0-2,.9-2,2v2H2c-1.1,0-2,.9-2,2V26c0,1.1,.9,2,2.........完整代码请登录后点击上方下载按钮下载查看