bootstrap实现支持暗色和亮色模式的头部下拉菜单效果代码-html代码-BFW代码库

代码语言：html

代码描述：bootstrap实现支持暗色和亮色模式的头部下拉菜单效果代码

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 type="text/css" rel="stylesheet" href="//repo.bfw.wiki/bfwrepo/css/bootstrap.4.3.1.min.css">
    <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('');
	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,.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 .3s ease-out;
	transition:all .3s ease-out
}
.cursor2.hover,.cursor3.hover {
	-webkit-transform:scale(2) translateX(-25%) translateY(-25%);
	transform:scale(2) translateX(-25%) translateY(-25%);
	border:0
}
.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
}
}.section {
	position:relative;
	width:100%;
	display:block
}
.over-hide {
	overflow:hidden
}
.full-height {
	height:100vh
}
.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 .3s ease-out
}
.logo-wrap a span {
	color:#8167a9
}
.logo-wrap a:hover {
	opacity:.9
}
.nav-but-wrap {
	position:relative;
	display:inline-block;
	float:left;
	padding-left:15px;
	padding-top:15px;
	margin-top:26px;
	transition:all .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 .8s,width cubic-bezier(0.77,0,0.175,1) .6s,height cubic-bezier(0.77,0,0.175,1) .6s
}
.nav:after {
	background-color:rgba(9,9,12,1);
	background-image:url('');
	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:.8s;
	transition-delay:.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:.7s;
	transition-delay:.7s
}
body.nav-active .nav__list-item:nth-child(1) {
	-webkit-transition-delay:.8s;
	transition-delay:.8s
}
body.nav-active .nav__list-item:nth-child(2) {
	-webkit-transition-delay:.9s;
	transition-delay:.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:nt.........完整代码请登录后点击上方下载按钮下载查看