css布局实现大气pc端首页多级菜单+幻灯片效果代码-html代码-BFW代码库

代码语言：html
代码描述：css布局实现大气pc端首页多级菜单+幻灯片效果代码
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>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style>

body,fieldset,html,iframe,img {
	border: 0
}

table {
	border-collapse: collapse;
	border-spacing: 0
}

li {
	list-style: none
}

caption,th {
	font-weight: 400;
	font-style: normal;
	text-align: left
}

em {
	font-style: normal
}

strong {
	font-weight: 700
}

body,input,select,textarea {
	font-family: Arial,"Hiragino Sans GB",\5fae\8f6f\96c5\9ed1,Helvetica,sans-serif;
	font-size: 14px;
	color: #444;
	outline: 0;
	border: 0
}

textarea {
	resize: none
}

input {
	vertical-align: middle;
	margin: 0
}

body {
	background-color: #fff
}

h1,h2,h3,h4,h5,h6 {
	font-weight: 400
}

a,button {
	cursor: pointer
}

a {
	text-decoration: none;
	color: #333
}

a:hover {
	color: #10ae58
}

body,html {
	width: 100%;
	height: 100%
}

html {
	overflow: auto
}

body {
	text-align: left;
	background: #eee
}

* {
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

html, body, div, dl, dt, dd, ol, ul, li, h1, h2, h3, h4, h5, h6, p, blockquote, pre, button, fieldset, form, input, legend, textarea, th, td {
	margin: 0;
	padding: 0;
}

button,input,optgroup,select,textarea {
	margin: 0;
	font: inherit;
	color: inherit;
	outline: none;
}

.clearfix::after {
	clear: both;
	content: ".";
	display: block;
	height: 0;
	visibility: hidden;
}

.f-f0 {
	font-family: Arial,"Hiragino Sans GB",\5fae\8f6f\96c5\9ed1,Helvetica,sans-serif
}

.f-f1 {
	font-family: Arial,"Hiragino Sans GB",SimSun,\5b8b\4f53,Georgia,serif
}

.f-fl {
	float: left
}

.f-fr {
	float: right
}

.f-pa {
	position: absolute
}

.p-15 {
	padding: 15px
}

.f-cb:after,.f-cbli li:after {
	display: block;
	clear: both;
	visibility: hidden;
	height: 0;
	overflow: hidden;
	content: "."
}

.f-cb,.f-cbli li {
	zoom: 1
}

.f-thide {
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	-ms-text-overflow: ellipsis
}

.f-hide {
	text-indent: -9999px;
	overflow: hidden
}

.f-ib {
	display: inline-block;
	zoom: 1
}

.f-dn {
	display: none
}

.f-db {
	display: block
}

.f-pr {
	position: relative
}

.f-pf {
	position: fixed
}

.f-af {
	position: absolute;
	top: 0;
	right: 0;
	bottom: 0;
	left: 0
}

.g-flow{
	width: 960px;
	margin: 0 auto;
	text-align: left
}

@media screen and (min-width:1210px) {
	.g-flow{
		width: 1205px
	}


	body {
		overflow-x: hidden
	}
}


.globalnavsprite,.m-indextopnav .topheader .login .u-mystudy .u-learn-record .arr,.u-indexnavcatebtn .cbtn .ic,.u-indexnavcatedialog .cateright .close,.u-navapptip .arrr,.u-navapptip .rcon .store,.u-navdropmenu .arrr,.u-navusermenu .arrr {
	background: url(../images/ui_new_yktnav_sprite.png) 9999px 9999px no-repeat
}

.globalnavsprite,.m-yktNav .userinfo .u-mystudy .u-learn-record .arr,.u-navapptip .arrr,.u-navapptip .rcon .store,.u-navcatebtn .cbtn,.u-navcatedialog .arrr,.u-navcatedialog .cateright .close,.u-navdropmenu .arrr,.u-navusermenu .arrr {
	background: url(../images/ui_new_yktnav_sprite.png) 9999px 9999px no-repeat
}

.x-hide,.x-hoverItem .x-child {
	-webkit-transition-property: opacity,-webkit-transform;
	-moz-transition-property: opacity,-webkit-transform;
	-ms-transition-property: opacity,-webkit-transform;
	-o-transition-property: opacity,-webkit-transform;
	transition-property: opacity,-webkit-transform;
	-webkit-transition-duration: .15s;
	-moz-transition-duration: .15s;
	-ms-transition-duration: .15s;
	-o-transition-duration: .15s;
	transition-duration: .15s;
	-webkit-transition-timing-function: ease-out;
	-moz-transition-timing-function: ease-out;
	-ms-transition-timing-function: ease-out;
	-o-transition-timing-function: ease-out;
	transition-timing-function: ease-out;
	-webkit-transform: scale(.9);
	opacity: 0;
	pointer-events: none;
	display: none\9;
	visibility: hidden
}

.x-hoverItem:hover .x-child{
	opacity: 1;
	-webkit-transform: scale(1);
	pointer-events: all;
	display: block\9;
	visibility: visible
}

.m-micro .m-micro-wrap .cntwrap .larr,.m-micro .m-micro-wrap .cntwrap .rarr {
	background: url(../images/indexsprite.png) no-repeat 9999px 9999px
}

.m-micro {
	z-index: 9;
	position: relative;
	margin-bottom: 30px
}

.m-micro .m-micro-wrap {
	border: 1px solid #ddd;
	border-top: none;
	padding: 15px 0;
	background-color: #fff
}

.m-micro .m-micro-wrap .item {
	border-left: 1px solid #ddd;
	width: 244px;
	height: 50px;
	padding: 0 10px
}

.m-micro .m-micro-wrap .item .imgbox {
	text-align: center;
	padding: 8px 0 5px 0;
	font-size: 32px;
	color: #2187e0;
	width: 46px;
	height: 46px;
	margin-left: 15px;
	margin-right: -82px
}

.m-micro .m-micro-wrap .item .tit {
	color: #333;
	width: 170px;
	font-size: 16px;
	margin-left: 65px;
	margin-top: 5px;
	line-height: 24px;
	height: 24px
}

.m-micro .m-micro-wrap .item .tit:hover {
	color: #39a030;
	text-decoration: none
}

.m-micro .m-micro-wrap .item .tip {
	color: #999;
	width: 170px;
	font-size: 12px;
	margin-left: 65px
}

.m-micro .m-micro-wrap .item:first-child {
	border-left: none
}

.m-micro .m-micro-wrap .item0 {
	text-align: center;
	width: 235px
}

.m-micro .m-micro-wrap .item0 a {
	display: block;
	padding-top: 4px
}

.m-micro .m-micro-wrap .item0 .intro {
	text-align: center;
	font-size: 12px;
	color: #2187e0
}

.m-micro .m-micro-wrap .cntwrap {
	width: 1202px;
	overflow: hidden
}

.m-micro .m-micro-wrap .cntwrap .cntlist {
	width: 9999px;
	height: 50px
}

.m-micro .m-micro-wrap .cntwrap .larr,.m-micro .m-micro-wrap .cntwrap .rarr {
	display: none;
	height: 50px;
	width: 14px;
	cursor: pointer
}

.m-micro .m-micro-wrap .cntwrap .larr {
	left: 1px;
	top: 15px;
	background-position: 0 -74px
}

.m-micro .m-micro-wrap .cntwrap .larrhover {
	background-position: -53px -74px
}

.m-micro .m-micro-wrap .cntwrap .rarr {
	right: 0;
	top: 15px;
	background-position: -28px -74px
}

.m-micro .m-micro-wrap .cntwrap .rarrhover {
	background-position: -78px -74px
}

.m-micro .m-micro-wrap .cntwrap:hover .larr,.m-micro .m-micro-wrap .cntwrap:hover .rarr {
	display: block
}

.m-yktNav .g-flow {
	width: 1205px
}

.m-yktNav .m-nav {
	position: relative;
	zoom: 1;
	display: inline;
	float: left;
	height: 60px
}

.m-yktNav .m-nav .nitem {
	position: relative;
	cursor: pointer;
	float: left;
	color: #eee;
	font-size: 16px;
	line-height: 60px;
	padding: 0 17px
}

.m-yktNav .m-nav .nitem.down-wrap {
	padding: 0
}

.m-yktNav .m-nav .nitem.down-wrap .downApp {
	padding: 0 15px;
	display: inline-block;
	height: 100%
}

.m-yktNav .m-nav .nitem.selected {
	color: #fff;
	background-color: #242630
}

.m-yktNav .m-nav .nitem.cur {
	color: #fff;
	background-color: #484C57
}

.m-yktNav .m-nav .nitem:hover {
	background-color: #484C57
}

.m-yktNav .m-nav .toggledrop {
	display: none
}

.m-yktNav .m-nav .nitem.active .toggledrop,.m-yktNav .m-nav .nitem:hover .toggledrop {
	display: block
}

.m-indextopnav {
	z-index: 10;
	position: relative;
	height: 0
}

.m-indextopnav .topnav {
	z-index: 1;
	height: 51px;
	background-color: #fff;
	border: 1px solid #ddd;
	border-bottom: none
}

.m-indextopnav .topnav .mainnav {
	float: left;
	height: 51px;
	padding-left: 249px
}

.m-indextopnav .topnav .mainnav .nitem {
	cursor: pointer;
	position: relative;
	float: left;
	color: #333;
	font-size: 16px;
	line-height: 51px;
	padding: 0 12px
}

.m-indextopnav .topnav .mainnav .nitem.down-wrap {
	padding: 0
}

.m-indextopnav .topnav .mainnav .nitem.down-wrap .downApp {
	padding: 0 15px;
	display: inline-block;
	height: 100%
}

.m-indextopnav .topnav .mainnav .nitem.selected,.m-indextopnav .topnav .mainnav .nitem:hover {
	color: #fff;
	background-color: #31a030
}

.m-indextopnav .topnav .search {
	position: relative;
	margin: 7px 6px 0 0;
	background-color: #fff;
	float: right;
	height: 34px;
	border: 1px solid #49af4f;
	width: 330px;
	-moz-transition: width .2s ease-out 0s;
	-o-transition: width .2s ease-out 0s;
	-webkit-transition: width .2s ease-out 0s;
	transition: width .2s ease-out 0s
}

.m-indextopnav .topnav .search.off {
	width: 216px;
	-moz-transition: width .2s ease-out 0s;
	-o-transition: width .2s ease-out 0s;
	-webkit-transition: width .2s ease-out 0s;
	transition: width .2s ease-out 0s
}

.m-indextopnav .topnav .search.off .delete-local {
	display: none
}

.m-indextopnav .topnav .search .search-type {
	line-height: 34px;
	cursor: pointer;
	position: relative
}

.m-indextopnav .topnav .search .search-type .select-list {
	line-height: 40px;
	padding: 0 9px;
	width: 49px;
	background-color: #fff;
	border: 1px solid #49af4f;
	border-top: none;
	left: -1px
}

.m-indextopnav .topnav .search .search-type .select-list:hover {
	color: #49af4f
}

.m-indextopnav .topnav .search .box {
	overflow: hidden;
	background: #fff;
	position: relative
}

.m-indextopnav .topnav .search .box input {
	background-color: #fff;
	height: 32px;
	line-height: 34px;
	color: #666;
	font-size: 14px;
	overflow: hidden;
	width: 100%;
	text-indent: 5px
}

.m-indextopnav .topnav .search .box label {
	height: 36px;
	position: absolute;
	top: 0;
	left: 5px;
	color: #aaa;
	font-size: 14px;
	cursor: text;
	line-height: 34px
}

.m-indextopnav .topnav .search .submit {
	display: block;
	width: 34px;
	height: 34px;
	cursor: pointer;
	right: 0;
	top: 0;
	background-image: url(../images/34BB5668E77F7D10A8581CBFAB5EA5CF.png)
}

.m-indextopnav .topnav .search .submit:hover {
	background-image: url(../images/9FFE3911A7E9E7C8DA028C542D7287DA.png)
}

.u-indexnavcatebtn {
	position: absolute;
	top: -1px;
	left: -1px;
	width: 224px;
	height: 52px;
	background-color: #31a030;
	overflow: hidden
}

.u-indexnavcatebtn .cbtn {
	display: block
}

.u-indexnavcatebtn .cbtn .ic {
	margin: 19px 10px 0 20px;
	width: 16px;
	height: 14px;
	background-position: 0 0
}

.u-indexnavcatebtn .cbtn .qb {
	color: #fff;
	line-height: 54px;
	font-size: 17px
}

.u-indexnavcatedialog {
	left: -1px;
	top: 51px;
	width: 224px
}

.u-indexnavcatedialog a:hover {
	text-decoration: underline
}

.u-indexnavcatedialog .fadeInOut {
	animation-name: fadeInOut;
	animation-duration: .2s;
	animation-timing-function: ease-in-out
}

.u-indexnavcatedialog .cateleft {
	z-index: 2;
	top: 0;
	left: 0;
	width: 224px;
	height: 340px
}

.u-indexnavcatedialog .cateleft .catebg {
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: #000;
	opacity: .7;
	filter: alpha(opacity=60)
}

.u-indexnavcatedialog .cateleft .items {
	top: 0;
	left: 0;
	height: 340px;
	width: 100%;
	overflow: hidden
}

.u-indexnavcatedialog .cateleft .item {
	height: 48px;
	padding: 0 10px 0 13px;
	position: relative
}

.u-indexnavcatedialog .cateleft .item .inn {
	position: relative;
	z-index: 2;
	height: 48px;
	padding: 0 0 0 5px;
	border-bottom: 1px solid rgba(255,255,255,.2)
}

.u-indexnavcatedialog .cateleft .item .inn p {
	overflow: hidden;
	height: 53px
}

.u-indexnavcatedialog .cateleft .item .inn .first {
	display: inline-block;
	color: #fff;
	font-size: 14px;
	line-height: 53px
}

.u-indexnavcatedialog .cateleft .item .inn .second {
	display: inline-block;
	color: #fff\9;
	color: rgba(255,255,255,.8);
	font-size: 12px;
	margin-left: 11px;
	line-height: 53px
}

.u-indexnavcatedialog .cateleft .item .curbg {
	display: none;
	position: absolute;
	z-index: 1;
	top: 0;
	left: 0;
	width: 225px;
	height: 48px;
	border-top: 1px solid #ddd;
	border-bottom: 1px solid #ddd;
	background-color: #fff
}

.u-indexnavcatedialog .cateleft .item.on .inn {
	border-bottom: none
}

.u-indexnavcatedialog .cateleft .item.on .inn .first {
	color: #333
}

.u-indexnavcatedialog .cateleft .item.on .inn .second {
	color: #666
}

.u-indexnavcatedialog .cateleft .item.on .curbg {
	display: block
}

.u-indexnavc.........完整代码请登录后点击上方下载按钮下载查看