css实现对齐按钮导航条选中动画效果代码-html代码-BFW代码库

代码语言：html

代码描述：css实现对齐按钮导航条选中动画效果代码

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">

  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
  
  
  
<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(20px + (30 - 20) * (100vw - 320px) / (1280 - 320));
}
body,
input {
	font: 1em/1.5 sans-serif;
}
body {
	background-color: var(--bg);
	color: var(--fg);
	height: 100vh;
	display: grid;
	place-items: center;
	transition:
		background-color var(--trans-dur),
		color var(--trans-dur);
}

/* Main */
.toolbar {
	background-color: hsl(0,0%,100%);
	border-radius: 0.5em;
	box-shadow: 0 0.75em 1.5em hsla(var(--hue),90%,55%,0.2);
	display: flex;
	padding: 1em;
	transition:
		background-color var(--trans-dur),
		box-shadow var(--trans-dur);
}
.toolbar__label {
	position: relative;
	width: 1.5em;
	height: 1.5em;
	-webkit-tap-highlight-color: transparent;
}
.toolbar__label + .toolbar__label {
	margin-left: 1em;
}
.toolbar__input {
	cursor: pointer;
	width: 100%;
	height: 100%;
	-webkit-appearance: none;
	appearance: none;
}
.toolbar__input:focus {
	outline: transparent;
}
.toolbar__icon {
	color: hsl(var(--hue),20%,90%);
	display: block;
	pointer-events: none;
	position: absolute;
	top: calc(50% - 1.75em);
	left: 0;
	width: 1.5em;
	height: 3.5em;
	transition: color var(--trans-dur);
}
.toolbar__icon-rects {
	fill: var(--primary);
	transition: fill var(--trans-dur);
}
.toolbar__icon-rect {
	animation-duration: 1s;
	animation-fill-mode: forwards;
}
.toolbar--pristine .toolbar__icon-rect {
	animation-duration: 0s;
}
.toolbar__icon--align-t .toolbar__icon-rect {
	animation-name: alignTopB1;
	transform: translate(0,32px);
}
.toolbar__icon--align-t .toolbar__icon-rect--delayed {
	animation-name: alignTopB2;
}
.toolbar__icon--align-m .toolbar__icon-rect {
	animation-name: alignMiddleB1;
	transform: translate(0,36px);
}
.toolbar__icon--align-m .toolbar__icon-rect--delayed {
	animation-name: alignMiddleB2;
}
.toolbar__icon--align-b .toolbar__icon-rect {
	animation-name: alignBottomB1;
	transform: translate(0,-32px);
}
.toolbar__icon--align-b .toolbar__icon-rect--delayed {
	animation-name: alignBottomB2;
}

/* Checked states */
.toolbar__input:checked + .toolbar__icon--align-t .toolbar__icon-rect {
	animation-name: alignTopA1;
}
.toolbar__input:checked + .toolbar__icon--align-t .toolbar__icon-rect--delayed {
	animation-name: alignTopA2;
}
.toolbar__input:checked + .toolbar__icon--align-m .toolbar__icon-rect {
	animation-name: alignMiddleA1;
}
.toolbar__input:checked + .toolbar__icon--align-m .toolbar__icon-rect--delayed {
	animation-name: alignMiddleA2;
}
.toolbar__input:checked + .toolbar__icon--align-b .toolbar__icon-rect {
	animation-name: alignBottomA1;
}
.toolbar__input:checked + .toolbar__icon--align-b .toolbar__icon-rect--delayed {
	animation-name: alignBottomA2;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
	:root {
		--bg: hsl(var(--hue),10%,10%);
		--fg: hsl(var(--hue),10%,90%);
		--primary: hsl(var(--hue),90%,65%);
	}
	.toolbar {
		background-color: hsl(var(--hue),10%,25%);
		box-shadow: 0 0.75em 1.5em hsla(var(--hue),90%,65%,0.2);
	}
	.toolbar__icon {
		color: hsl(var(--hue),20%,35%);
	}
}

/* Animations */
@keyframes alignTopA1 {
	from,
	25% {
		animation-timing-function: ease-out;
		transform: translate(0,32px);
	}
	35%,
	55%,
	75%,
	95%,
	to {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	45% {
		animation-timing-function: ease-out;
		transform: translate(0,16px);
	}
	65% {
		animation-timing-function: ease-out;
		transform: translate(0,4px);
	}
	85% {
		animation-timing-function: ease-out;
		transform: translate(0,1px);
	}
}
@keyframes alignTopA2 {
	from,
	30% {
		animation-timing-function: ease-out;
		transform: translate(0,32px);
	}
	40%,
	60%,
	80%,
	to {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	50% {
		animation-timing-function: ease-out;
		transform: translate(0,16px);
	}
	70% {
		animation-timing-function: ease-out;
		transform: translate(0,4px);
	}
	90% {
		animation-timing-function: ease-out;
		transform: translate(0,1px);
	}
}
@keyframes alignTopB1 {
	from {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	25%,
	to {
		transform: translate(0,32px);
	}
}
@keyframes alignTopB2 {
	from,
	5% {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	30%,
	to {
		transform: translate(0,32px);
	}
}
@keyframes alignMiddleA1 {
	from,
	25% {
		animation-timing-function: ease-out;
		transform: translate(0,-36px);
	}
	35%,
	55%,
	75%,
	95%,
	to {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	45% {
		animation-timing-function: ease-out;
		transform: translate(0,-18px);
	}
	65% {
		animation-timing-function: ease-out;
		transform: translate(0,-5px);
	}
	85% {
		animation-timing-function: ease-out;
		transform: translate(0,-1px);
	}
}
@keyframes alignMiddleA2 {
	from,
	30% {
		animation-timing-function: ease-out;
		transform: translate(0,-36px);
	}
	40%,
	60%,
	80%,
	to {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	50% {
		animation-timing-function: ease-out;
		transform: translate(0,-18px);
	}
	70% {
		animation-timing-function: ease-out;
		transform: translate(0,-5px);
	}
	90% {
		animation-timing-function: ease-out;
		transform: translate(0,-1px);
	}
}
@keyframes alignMiddleB1 {
	from {
		animation-timing-function: ease-in;
		transform: translate(0,0);
	}
	25%,
	to {
		transform: translate(0,36px);
	}
}
@keyframes alignMiddleB2 {
	fro.........完整代码请登录后点击上方下载按钮下载查看