光标有反转效果的侧边导航（附源代码）
效果预览
源码介绍
这是一个侧边导航效果，这个展开的效果给人一种很柔和的感觉，展开后菜单内容依次显示，最后是增加了一个聚焦的圆跟随光标移动，当遇到菜单内容时会放大圆形并反转显示菜单文字，加深了对导航的交互，这里的反转色基于 mix-blend-mode: difference 实现。这个效果还有两个主题色切换，有兴趣的可以在线看效果。
使用方式
复制源代码到空白的html格式文件，在浏览中打开运行即可。
源代码
<!DOCTYPE html>
<html lang="en">
<head>
<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<style>
@import url('https://fonts.googleapis.com/css?family=Montserrat:100,100i,200,200i,300,300i,400,400i,500,500i,600,600i,700,700i,800,800i,900,900i');
@import url('https://fonts.googleapis.com/css?family=Poppins:400,500,600,700,800,900');
body{
font-family: 'Montserrat', sans-serif;
font-weight: 300;
font-size: 15px;
line-height: 1.7;
color: #c4c3ca;
background-color: #1f2029;
background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/1462889/pat-back.svg');
background-position: center;
background-repeat: repeat;
background-size: 4%;
overflow-x: hidden;
-webkit-transition: all 300ms linear;
transition: all 300ms linear;
}
a {
cursor: pointer;
}
a:hover {
text-decoration: none;
}
/* #Cursor
================================================== */
.cursor,
.cursor2,
.cursor3{
position: fixed;
border-radius: 50%;
transform: translateX(-50%) translateY(-50%);
pointer-events: none;
left: -100px;
top: 50%;
mix-blend-mode: difference;
-webkit-transition: all 300ms linear;
transition: all 300ms linear;
}
.cursor{
background-color: #fff;
height: 0;
width: 0;
z-index: 99999;
}
.cursor2,.cursor3{
height: 36px;
width: 36px;
z-index:99998;
-webkit-transition:all 0.3s ease-out;
transition:all 0.3s ease-out
}
.cursor2.hover,
.cursor3.hover{
-webkit-transform:scale(2) translateX(-25%) translateY(-25%);
transform:scale(2) translateX(-25%) translateY(-25%);
border:none
}
.cursor2{
border: 2px solid #fff;
box-shadow: 0 0 22px rgba(255, 255, 255, 0.6);
}
.cursor2.hover{
background: rgba(255,255,255,1);
box-shadow: 0 0 12px rgba(255, 255, 255, 0.2);
}
@media screen and (max-width: 1200px){
.cursor,.cursor2,.cursor3{
display: none
}
}
/* #Primary style
================================================== */
.section {
position: relative;
width: 100%;
display: block;
}
.over-hide{
overflow: hidden;
}
.full-height {
height: 100vh;
}
/* #Navigation
================================================== */
.cd-header{
position: fixed;
width:100%;
top:0;
left:0;
z-index:100;
}
.header-wrapper{
position: relative;
width: calc(100% - 100px);
margin-left: 50px;
}
.logo-wrap {
position: absolute;
display:block;
right:0;
top: 40px;
cursor: pointer;
}
.logo-wrap a {
cursor: pointer;
font-family: 'Montserrat', sans-serif;
font-weight: 900;
font-size: 20px;
line-height: 20px;
text-transform: uppercase;
letter-spacing: 2px;
color: #fff;
transition : all 0.3s ease-out;
}
.logo-wrap a span{
color: #8167a9;
}
.logo-wrap a:hover {
opacity: 0.9;
}
.nav-but-wrap{
position: relative;
display: inline-block;
float: left;
padding-left: 15px;
padding-top: 15px;
margin-top: 26px;
transition : all 0.3s ease-out;
}
.menu-icon {
height: 30px;
width: 30px;
position: relative;
z-index: 2;
cursor: pointer;
display: block;
}
.menu-icon__line {
height: 2px;
width: 30px;
display: block;
background-color: #fff;
margin-bottom: 7px;
cursor: pointer;
-webkit-transition: background-color .5s ease, -webkit-transform .2s ease;
transition: background-color .5s ease, -webkit-transform .2s ease;
transition: transform .2s ease, background-color .5s ease;
transition: transform .2s ease, background-color .5s ease, -webkit-transform .2s ease;
}
.menu-icon__line-left {
width: 16.5px;
-webkit-transition: all 200ms linear;
transition: all 200ms linear;
}
.menu-icon__line-right {
width: 16.5px;
float: right;
-webkit-transition: all 200ms linear;
-moz-transition: all 200ms linear;
-o-transition: all 200ms linear;
-ms-transition: all 200ms linear;
transition: all 200ms linear;
}
.menu-icon:hover .menu-icon__line-left,
.menu-icon:hover .menu-icon__line-right {
width: 30px;
}
.nav {
position: fixed;
z-index: 98;
}
.nav:before, .nav:after {
content: "";
position: fixed;
top: 20px;
left: 50px;
width: 0;
height: 0;
background-color: rgba(20, 21, 26,0.6);
border-bottom-right-radius: 200%;
z-index: -1;
transition: border-radius linear 0.8s, width cubic-bezier(0.77, 0, 0.175, 1) 0.6s, height cubic-bezier(0.77, 0, 0.175, 1) 0.6s;
}
.nav:after {
background-color: rgba(9,9,12,1);
background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/1462889/pat.svg');
background-position: bottom center;
background-repeat: no-repeat;
background-size: 300%;
-webkit-transition-delay: 0s;
transition-delay: 0s;
box-shadow: 6px 7px 28px 0 rgba(16, 16, 16, 0.3);
}
.nav:before {
-webkit-transition-delay: .2s;
transition-delay: .2s;
}
.nav__content {
position: fixed;
visibility: hidden;
top: 90px;
left: 50px;
width: 280px;
text-align: left;
}
.nav__list {
position: relative;
padding: 0;
margin: 0;
z-index: 2;
}
.nav__list-item {
position: relative;
display: block;
-webkit-transition-delay: 0.8s;
transition-delay: 0.8s;
opacity: 0;
text-align: left;
color: #fff;
overflow: hidden;
font-family: 'Poppins', sans-serif;
font-size: 22px;
line-height: 1.2;
letter-spacing: 2px;
-webkit-transform: translate(30px, 0%);
transform: translate(30px, 0%);
-webkit-transition: opacity .2s ease, -webkit-transform .3s ease;
transition: opacity .2s ease, -webkit-transform .2s ease;
transition: opacity .2s ease, transform .2s ease;
transition: opacity .2s ease, transform .2s ease, -webkit-transform .2s ease;
margin-top: 7px;
margin-bottom: 7px;
}
.nav__list-item a{
position: relative;
text-decoration: none;
color: rgba(255,255,255,0.6);
overflow: hidden;
cursor: pointer;
font-family: 'Poppins', sans-serif;
font-weight: 600;
z-index: 2;
padding-left: 40px;
padding-top:5px;
padding-bottom: 5px;
display: inline-block;
-webkit-transition: all 200ms linear;
transition: all 200ms linear;
}
.nav__list-item a:after{
position: absolute;
content: '';
top: 50%;
left: 0;
width: 5px;
height: 0;
opacity: 0;
background-color: #8167a9;
z-index: 1;
-webkit-transition: all 200ms linear;
transition: all 200ms linear;
}
.nav__list-item a:hover:after{
height: 100%;
opacity: 1;
top: 0;
}
.nav__list-item a:hover{
color: rgba(255,255,255,1);
}
.nav__list-item.active-nav a{
color: rgba(255,255,255,1);
}
.nav__list-item.active-nav a:after{
height: 100%;
opacity: 1;
top: 0;
}
body.nav-active .nav__content {
visibility: visible;
}
body.nav-active .menu-icon__line {
background-color: #fff;
-webkit-transform: translate(0px, 0px) rotate(-45deg);
transform: translate(0px, 0px) rotate(-45deg);
}
body.nav-active .menu-icon__line-left {
width: 15px;
-webkit-transform: translate(2px, 4px) rotate(45deg);
transform: translate(2px, 4px) rotate(45deg);
}
body.nav-active .menu-icon__line-right {
width: 15px;
float: right;
-webkit-transform: translate(-3px, -3.5px) rotate(45deg);
transform: translate(-3px, -3.5px) rotate(45deg);
}
body.nav-active .menu-icon:hover .menu-icon__line-left,
body.nav-active .menu-icon:hover .menu-icon__line-right {
width: 15px;
}
body.nav-active .nav {
visibility: visible;
}
body.nav-active .nav:before, body.nav-active .nav:after {
width: 250px;
height: 350px;
border-radius: 15px;
}
body.nav-active .nav:after {
-webkit-transition-delay: .1s;
transition-delay: .1s;
}
body.nav-active .nav:before {
-webkit-transition-delay: 0s;
transition-delay: 0s;
}
body.nav-active .nav__list-item {
opacity: 1;
-webkit-transform: translateX(0%);
transform: translateX(0%);
-webkit-transition: opacity .3s ease, color .3s ease, -webkit-transform .3s ease;
transition: opacity .3s ease, color .3s ease, -webkit-transform .3s ease;
transition: opacity .3s ease, transform .3s ease, color .3s ease;
transition: opacity .3s ease, transform .3s ease, color .3s ease, -webkit-transform .3s ease;
}
body.nav-active .nav__list-item:nth-child(0) {
-webkit-transition-delay: 0.7s;
transition-delay: 0.7s;
}
body.nav-active .nav__list-item:nth-child(1) {
-webkit-transition-delay: 0.8s;
transition-delay: 0.8s;
}
body.nav-active .nav__list-item:nth-child(2) {
-webkit-transition-delay: 0.9s;
transition-delay: 0.9s;
}
body.nav-active .nav__list-item:nth-child(3) {
-webkit-transition-delay: 1s;
transition-delay: 1s;
}
body.nav-active .nav__list-item:nth-child(4) {
-webkit-transition-delay: 1.1s;
transition-delay: 1.1s;
}
body.nav-active .nav__list-item:nth-child(5) {
-webkit-transition-delay: 1.2s;
transition-delay: 1.2s;
}
body.nav-active .nav__list-item:nth-child(6) {
-webkit-transition-delay: 1.3s;
transition-delay: 1.3s;
}
body.nav-active .nav__list-item:nth-child(7) {
-webkit-transition-delay: 1.4s;
transition-delay: 1.4s;
}
body.nav-active .nav__list-item:nth-child(8) {
-webkit-transition-delay: 1.5s;
transition-delay: 1.5s;
}
body.nav-active .nav__list-item:nth-child(9) {
-webkit-transition-delay: 1.6s;
transition-delay: 1.6s;
}
body.nav-active .nav__list-item:nth-child(10) {
-webkit-transition-delay: 1.7s;
transition-delay: 1.7s;
}
.switch-wrap {
position: absolute;
top: 50%;
left: 0;
z-index: 10;
transform: translateY(-50%);
width: 100%;
-webkit-transition: all 500ms linear;
transition: all 500ms linear;
margin: 0 auto;
text-align: center;
}
.switch-wrap h1 {
font-weight: 900;
font-size: 46px;
line-height: 1;
color: #fff;
text-align: center;
text-transform: uppercase;
margin-bottom: 40px;
-webkit-transition: all 300ms linear;
transition: all 300ms linear;
}
@media screen and (max-width: 580px){
.switch-wrap h1 {
font-size: 32px;
}
}
.switch-wrap p {
font-weight: 600;
font-size: 14px;
letter-spacing: 1px;
line-height: 1;
color: #8167a9;
text-align: center;
margin-top: 15px;
}
.switch-wrap p span {
position: relative;
}
.switch-wrap p span:before {
position: absolute;
content: '';
width: 100%;
height: 2px;
background-color: #fff;
left: 0;
bottom: -4px;
-webkit-transition: all 300ms linear;
transition: all 300ms linear;
}
.switch-wrap p span:nth-child(2):before {
opacity: 0;
}
#switch,
#circle {
cursor: pointer;
-webkit-transition: all 300ms linear;
transition: all 300ms linear;
}
#switch {
width: 60px;
height: 8px;
margin: 0 auto;
text-align: center;
border: 2px solid #000;
border-radius: 27px;
background: #8167a9;
position: relative;
display: inline-block;
}
#circle {
position: absolute;
top: -11px;
left: -13px;
width: 26px;
height: 26px;
border-radius: 50%;
box-shadow: 0 4px 4px rgba(26,53,71,0.25), 0 0 0 1px rgba(26,53,71,0.07);
background: #fff;
}
.switched {
border-color: #8167a9 !important;
background: #000 !important;
}
.switched #circle {
left: 43px;
background: #000;
}
/* #Light
================================================== */
body.light{
background-color: #fff;
}
body.light .cursor,
body.light .cursor2,
body.light .cursor3{
mix-blend-mode: normal;
}
body.light .cursor2{
border: 2px solid #1f2029;
box-shadow: 0 0 4px rgba(0, 0, 0, 0.1);
}
body.light .cursor2.hover{
background: rgba(0,0,0,0.06);
box-shadow: 0 0 2px rgba(0, 0, 0, 0.1);
border-color: transparent;
}
body.light .logo-wrap a {
color: #1f2029;
}
body.light .menu-icon__line {
background-color: #1f2029;
}
body.light .nav:before {
background-color: rgba(235, 235, 235,0.4);
}
body.light .nav:after {
background-color: rgb(246,239,249);
box-shadow: 6px 6px 22px rgba(42, 31, 63, 0.1);
}
body.light .nav__list-item a{
color: rgba(0,0,0,0.6);
}
body.light .nav__list-item a:hover{
color: #1f2029;
}
body.light .nav__list-item.active-nav a{
color: #1f2029;
}
body.light .switch-wrap h1 {
color: #000;
}
body.light .switch-wrap p span:nth-child(2):before {
opacity: 1;
background-color: #000;
}
body.light .switch-wrap p span:nth-child(1):before {
opacity: 0;
}
/* #Link to page
================================================== */
.link-to-portfolio {
position: fixed;
bottom: 40px;
right: 50px;
z-index: 200;
cursor: pointer;
width: 50px;
height: 50px;
text-align: center;
border-radius: 3px;
background-position: center center;
background-size: 65%;
background-repeat: no-repeat;
background-image: url('https://assets.codepen.io/1462889/fcy.png');
box-shadow: 0 0 0 2px rgba(255,255,255,.1);
transition: opacity .2s, border-radius .2s, box-shadow .2s;
transition-timing-function: ease-out;
}
.link-to-portfolio:hover {
opacity: 0.8;
border-radius: 50%;
box-shadow: 0 0 0 20px rgba(255,255,255,.1);
}
</style>
</head>
<body>
<header class="cd-header">
<div class="header-wrapper">
<div class="logo-wrap">
<a href="#" class="hover-target"><span>your</span>logo</a>
</div>
<div class="nav-but-wrap">
<div class="menu-icon hover-target">
<span class="menu-icon__line menu-icon__line-left"></span>
<span class="menu-icon__line"></span>
<span class="menu-icon__line menu-icon__line-right"></span>
</div>
</div>
</div>
</header>
<div class="nav">
<div class="nav__content">
<ul class="nav__list">
<li class="nav__list-item active-nav"><a href="#" class="hover-target">Home</a></li>
<li class="nav__list-item"><a href="#" class="hover-target">Portfolio</a></li>
<li class="nav__list-item"><a href="#" class="hover-target">Studio</a></li>
<li class="nav__list-item"><a href="#" class="hover-target">News</a></li>
<li class="nav__list-item"><a href="#" class="hover-target">Contact</a></li>
</ul>
</div>
</div>
<div class="section full-height over-hide">
<div class="switch-wrap">
<h1>Drop-down menu</h1>
<div id="switch" class="hover-target">
<div id="circle"></div>
</div>
<p><span>dark</span> - <span>light</span></p>
</div>
</div>
<div class='cursor' id="cursor"></div>
<div class='cursor2' id="cursor2"></div>
<div class='cursor3' id="cursor3"></div>
<!-- Link to page
================================================== -->
<a href="https://front.codes/" class="link-to-portfolio hover-target" target=”_blank”></a>
</body>
<script>
/* Please ❤ this if you like it! */
(function($) { "use strict";
//Page cursors
document.getElementsByTagName("body")[0].addEventListener("mousemove", function(n) {
t.style.left = n.clientX + "px",
t.style.top = n.clientY + "px",
e.style.left = n.clientX + "px",
e.style.top = n.clientY + "px",
i.style.left = n.clientX + "px",
i.style.top = n.clientY + "px"
});
var t = document.getElementById("cursor"),
e = document.getElementById("cursor2"),
i = document.getElementById("cursor3");
function n(t) {
e.classList.add("hover"), i.classList.add("hover")
}
function s(t) {
e.classList.remove("hover"), i.classList.remove("hover")
}
s();
for (var r = document.querySelectorAll(".hover-target"), a = r.length - 1; a >= 0; a--) {
o(r[a])
}
function o(t) {
t.addEventListener("mouseover", n), t.addEventListener("mouseout", s)
}
//Navigation
var app = function () {
var body = undefined;
var menu = undefined;
var menuItems = undefined;
var init = function init() {
body = document.querySelector('body');
menu = document.querySelector('.menu-icon');
menuItems = document.querySelectorAll('.nav__list-item');
applyListeners();
};
var applyListeners = function applyListeners() {
menu.addEventListener('click', function () {
return toggleClass(body, 'nav-active');
});
};
var toggleClass = function toggleClass(element, stringClass) {
if (element.classList.contains(stringClass)) element.classList.remove(stringClass);else element.classList.add(stringClass);
};
init();
}();
//Switch light/dark
$("#switch").on('click', function () {
if ($("body").hasClass("light")) {
$("body").removeClass("light");
$("#switch").removeClass("switched");
}
else {
$("body").addClass("light");
$("#switch").addClass("switched");
}
});
})(jQuery);
</script>
</html>本文参与 腾讯云自媒体同步曝光计划，分享自作者个人站点/博客。
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