卡片式菜单

下载代码

html

css

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html

<nav class="nav">
	<ul class="nav__items">
		<li class="nav__item nav__item--active">
			<a class="nav__item-link" href="#">
				<svg class="nav__item-icon" width="32px" height="32px" aria-hidden="true">
					<use xlink:href="#home" />
				</svg>
				Home
			</a>
		</li>
		<li class="nav__item">
			<a class="nav__item-link" href="#">
				<svg class="nav__item-icon" width="32px" height="32px" aria-hidden="true">
					<use xlink:href="#portfolio" />
				</svg>
				Portfolio
			</a>
		</li>
		<li class="nav__item">
			<a class="nav__item-link" href="#">
				<svg class="nav__item-icon" width="32px" height="32px" aria-hidden="true">
					<use xlink:href="#about" />
				</svg>
				About
			</a>
		</li>
		<li class="nav__item">
			<a class="nav__item-link" href="#">
				<svg class="nav__item-icon" width="32px" height="32px" aria-hidden="true">
					<use xlink:href="#contact" />
				</svg>
				Contact
			</a>
		</li>
	</ul>
	<svg class="nav__arrow" width="12px" height="6px" aria-hidden="true">
		<polyline fill="none" stroke="currentColor" stroke-width="2" points="1,1 6,5 11,1" />
	</svg>
</nav>
<main>
	<h1>A Fun Navigation Demo</h1>
	<p>Stuff and things ask to go outside and ask to come inside and ask to go outside and ask to come inside don’t nosh on the birds making bread on the bathrobe but catty ipsum. Annoy owner until he gives you food say meow repeatedly until belly rubs, feels good lick the plastic bag i is not fat, i is fluffy has closed eyes but still sees you.</p>
	<p>Attack the dog then pretend like nothing happened sit and stare meow, i dreamt about fish yum! So the cat was chasing the mouse dream about hunting birds. Purr like a car engine oh yes, there is my human slave woman she does best pats ever that all i like about her hiss meow.</p>
	<p>The fat cat sat on the mat bat away with paws, why use post when this sofa is here yet this is the day so sleep on my human’s head. Behind the couch pet me pet me don’t pet me meow and spread kitty litter all over house.</p>
</main>

css

* {
	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%);
	}
}

JavaScript

window.addEventListener("DOMContentLoaded",() => {
	const nav = new CardNav("nav");
});

class CardNav {
	constructor(qs) {
		this.overflowClass ="no-scroll";
		this.openClass = "nav--open";
		this.activeClass = "nav__item--active";
		this.el = document.querySelector(qs);
		this.el?.addEventListener("click",this.toggle.bind(this));
	}
	toggle(e) {
		e.preventDefault();

const { target } = e;

if (target.hasAttribute("href")) {
			const { body } = document;
			const { overflowClass, openClass, activeClass, el } = this;

// toggle class to open or close
			el.classList.toggle(openClass);

if (el.classList.contains(openClass)) {
				body.classList.add(overflowClass);
			} else {
				body.classList.remove(overflowClass);
				// take the class from the previously active item…
				const active = el?.querySelector(`.${activeClass}`);

active.classList.remove(activeClass);

// …and give it to the newly active item
				target.parentElement.classList.add(activeClass);
			}
		}
	}
}

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