js+css实现底部图标菜单导航条点击动画效果代码-html代码-BFW代码库

代码语言：html

代码描述：js+css实现底部图标菜单导航条点击动画效果代码

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"><link rel='stylesheet' href='https://fonts.googleapis.com/css2?family=DM+Sans&amp;display=swap'>
<style>
    * {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --fg: #17181c;
  --primary: #255ff4;
  --primary-hover: #255ff4;
  --secondary: #8525f4;
  --trans-dur: 0.3s;
  --trans-timing: cubic-bezier(0.7,0,0.3,1);
  font-size: calc(16px + (20 - 16) * (100vw - 320px) / (1280 - 320));
}

body,
nav a {
  color: var(--fg);
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

body {
  background-image: linear-gradient(45deg, var(--primary), var(--secondary));
  font: 1em/1.5 "DM Sans", sans-serif;
  height: 100vh;
  min-height: 24em;
}

.app,
.card,
.nav {
  padding: 0.75em;
  transition: background-color var(--trans-dur), box-shadow var(--trans-dur);
  width: 100%;
}

.app,
.card {
  background-color: rgba(255, 255, 255, 0.1);
}

.app {
  border-radius: 0 0 1.75em 1.75em;
  box-shadow: 0 0.5em 2em rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  margin: auto;
  max-width: 20em;
  height: 22em;
  perspective: 20em;
  position: relative;
  top: -2em;
}

.cards {
  padding: 0 0.5em;
}

.card {
  border-radius: 1.25em;
  min-height: 6em;
  margin-bottom: 0.75em;
  opacity: 0;
}
.card--fly-out {
  animation: fadeInFlyOut 1s var(--trans-timing) forwards;
}
.card--fly-out:nth-child(1) {
  animation-delay: 0s;
}
.card--fly-out:nth-child(2) {
  animation-delay: 0.05s;
}

.icon1-1 {
  transform-origin: 12px 6px;
}

.icon3-1 {
  transform-origin: 12px 1px;
}

.icon4-3 {
  transform-origin: 12px 10px;
}

.icon5-1 {
  transform-origin: 12px 20px;
}

.nav {
  background-color: #e3e4e8;
  border-radius: 1em;
  box-shadow: 0 0.25em 0.5em rgba(0, 0, 0, 0.3);
  transform-origin: 50% 133%;
}
.nav--tilt1 {
  animation: tilt1 0.6s ease-in-out;
}
.nav--tilt2 {
  animation: tilt2 0.6s ease-in-out;
}
.nav--tilt3 {
  animation: tilt3 0.6s ease-in-out;
}
.nav--tilt4 {
  animation: tilt4 0.6s ease-in-out;
}
.nav--tilt5 {
  animation: tilt5 0.6s ease-in-out;
}
.nav__items {
  display: flex;
  justify-content: space-between;
  list-style: none;
}
.nav__item-btn {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  text-align: center;
  width: 3em;
  height: 3em;
  text-decoration: none;
}
.nav__item-btn:focus, .nav__item-btn:hover, .nav__item-btn[aria-describedby=current] {
  color: var(--primary-hover);
}
.nav__item-btn:focus {
  outline: transparent;
}
.nav__item-icon {
  display: block;
  margin: 0 auto;
  overflow: visible;
  width: 1.5em;
  height: 1.5em;
  transition: transform var(--trans-dur) var(--trans-timing);
}
.nav__item-icon g,
.nav__item-icon path,
.nav__item-icon rect {
  animation-duration: calc(var(--trans-dur) * 3);
  animation-timing-function: var(--trans-timing);
}
.nav__item-text {
  display: block;
  font-size: 0.6em;
  line-height: 1.25;
  opacity: 0;
  text-align: center;
  transition: opacity var(--trans-dur) var(--trans-timing);
}
.nav__item-btn:focus .nav__item-icon, .nav__item-btn:hover .nav__item-icon {
  transform: translateY(-0.5em);
}
.nav__item-btn:focus .nav__item-text, .nav__item-btn:hover .nav__item-text {
  animation: fadeFlyIn calc(var(--trans-dur) * 1.5) var(--trans-timing);
  opacity: 1;
}
.nav__item-btn:focus .icon1-1, .nav__item-btn:hover .icon1-1 {
  animation-name: icon1-1;
}
.nav__item-btn:focus .icon2-1, .nav__item-btn:hover .icon2-1 {
  animation-name: icon2-1;
}
.nav__item-btn:focus .icon2-2, .nav__item-btn:hover .icon2-2 {
  animation-name: icon2-2;
}
.nav__item-btn:focus .icon2-3, .nav__item-btn:hover .icon2-3 {
  animation-name: icon2-3;
}
.nav__item-btn:focus .icon2-4, .nav__item-btn:hover .icon2-4 {
  animation-name: icon2-4;
}
.nav__item-btn:focus .icon3-1, .nav__item-btn:hover .icon3-1 {
  animation-name: icon3-1;
}
.nav__item-btn:focus .icon4-1, .nav__item-btn:hover .icon4-1 {
  animation-name: icon4-1;
}
.nav__item-btn:focus .icon4-2, .nav__item-btn:hover .icon4-2 {
  animation-name: icon4-2;
}
.nav__item-btn:focus .icon4-3, .nav__item-btn:hover .icon4-3 {
  animation-name: icon4-3;
}
.nav__item-btn:focus .icon5-1, .nav__item-btn:hover .icon5-1 {
  animation-name: icon5-1;
}

/* `:focus-visible` support */
@supports selector(:focus-visible) {
  .nav__item-btn:focus {
    color: currentColor;
  }
  .nav__item-btn:focus-visible, .nav__item-btn:hover, .nav__item-btn[aria-describedby=current] {
    color: var(--primary-hover);
  }
  .nav__item-btn:focus .nav__item-icon {
    transform: translateY(0);
  }
  .nav__item-btn:focus .nav__item-text {
    opacity: 0;
  }
  .nav__item-btn:focus-visible .nav__item-icon, .nav__item-btn:hover .nav__item-icon {
    transform: translateY(-0.5em);
  }
  .nav__item-btn:focus-visible .nav__item-text, .nav__item-btn:hover .nav__item-text {
    opacity: 1;
  }
}
/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e3e4e8;
    --primary-hover: #5583f6;
  }

  .app,
.card {
    background-color: rgba(0, 0, 0, 0.2);
  }

  .app {
    box-shadow: 0 0.5em 2em rgba(0, 0, 0, 0.5);
  }

  .nav {
    background-color: #17181c;
  }
}
/* Animations */
@keyframes fadeFlyIn {
  from, 33.3% {
    opacity: 0;
    transform: translateY(0.5em);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInFlyOut {
  from {
    opacity: 0;
    transform: translateY(0) scale(0.9);
  }
  35% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 1;
    transform: translateY(-250%) scale(1);
  }
}
@keyframes icon1-1 {
  from, to {
    transform: rotate(0);
  }
  33% {
    transform: rotate(30deg);
  }
  67% {
    transform: rotate(-30deg);
  }
}
@keyframes icon2-1 {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(13px, 0);
  }
}
@keyframes icon2-2 {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(0, 13px);
  }
}
@keyframes icon2-3 {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(0, -13px);
  }
}
@keyframes icon2-4 {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(-13px, 0);
  }
}
@keyframes icon3-1 {
  from, to {
    transform: rotateX(0);
  }
  50% {
    transform: rotateX(-135deg);
  }
}
@keyframes icon4-1 {
  from, to {
    height: 0;
    transform: translateY(0);
  }
  50% {
    height: 5px;
    transform: translateY(-2px);
  }
}
@keyframes icon4-2 {
  from, to {
    height: 16px;
    transform: translateY(0);
  }
  50% {
    height: 15px;
    transform: translateY(-2px);
  }
}
@keyframes icon4-3 {
  from, to {
    transform: rotateX(0);
  }
  50% {
    transform: rotateX(-130deg);
  }
}
@keyframes icon5-1 {
  from, to {
    transform: rotate(0);
  }
  50% {
    transform: rotate(-30deg);
  }
}
@keyframes tilt1 {
  from, to {
    transform: rotateY(0);
  }
  50% {
    transform: rotateY(-4deg);
  }
}
@keyframes tilt2 {
  from, to {
    transform: rotateX(0) rotateY(0);
  }
  50% {
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