html,body{
	height:100%;
	font-family:"Microsoft YaHei","微软雅黑","Microsoft JhengHei","华文黑体",arial,sans-serif,STHeiti,sans-serif;
	background:#ffffff
}
a{
	color:#148fd4;
	text-decoration:none
}
div{
	word-break:break-all
}
input,textarea{
	padding:0;
	margin:0;
	border:none;
	outline:none
}
img{
	border:none
}
table{
	border-collapse:collapse;
	border-spacing:0
}
h2{
	font-size:16px
}
h3{
	font-size:14px
}
body{
	overflow:hidden
}
.hide{
	display:none
}
.clickable{
	cursor:pointer
}
::-webkit-scrollbar{
	height:8px;
	width:8px;
	background:rgba(152,152,152,0.3);
	border-radius:5px
}
::-webkit-scrollbar-button{
	display:none
}
::-webkit-scrollbar-track{
	background-color:#ffffff
}
::-webkit-scrollbar-track-piece{
	background:#ffffff
}
::-webkit-scrollbar-thumb{
	width:8px;
	min-height:15px;
	background:rgba(0,0,0,0.2);
	border-radius:5px
}
::-webkit-scrollbar-thumb:hover{
	background:rgba(0,0,0,0.6)
}
::-webkit-scrollbar-thumb:active{
	background:rgba(0,0,0,0.8)
}
html,body,h1,h2,h3,form,ul,ol,li,dl,dt,dd,form{
	padding:0;
	margin:0;
	line-height:1;
	list-style:none
}
#wrap{
	height:100%
}
.blk-main{
	padding-left:201px;
	min-width:599px;
	height:100%
}
.top-u-panel{
	top:10px
}
.share-page{
	background-color:#f5f5f5
}
.form .text{
	min-width:165px
}
.ynote-logo{
	font:12px/1 "Microsoft Yahei","微软雅黑","黑体","SimHei",Arial,sans-serif;
	font-size:16px;
	line-height:30px;
	font-weight:bold;
	color:#2E2E2E
}
.ynote-logo img{
	vertical-align:middle
}
.ellipsis{
	overflow:hidden;
	white-space:nowrap;
	text-overflow:ellipsis;
	-o-text-overflow:ellipsis;
	-icab-text-overflow:ellipsis;
	-khtml-text-overflow:ellipsis;
	-moz-text-overflow:ellipsis;
	-webkit-text-overflow:ellipsis
}
.blk-top{
	border-bottom:5px solid #67AD03;
	background-color:#fff;
	width:100%
}
.blk-top .top-main{
	position:relative;
	max-width:917px;
	margin:0 auto
}
.blk-top .top-main .top-logo{
	padding:29px 0px 32px 1px
}
.blk-top .top-main .top-u-panel{
	position:absolute;
	right:10px;
	top:29px;
	color:#666
}
.blk-top .top-main .top-u-panel .focus-btn{
	display:inline-block;
	margin-left:12px;
	padding:8px 16px 8px 14px;
	border:2px solid #dddddd;
	border-radius:100px;
	cursor:pointer
}
.blk-top .top-main .top-u-panel .focus-btn:hover{
	border:2px solid #67ad03
}
.blk-top .top-main .top-u-panel .focus-btn img{
	vertical-align:middle
}
.blk-top .top-main .top-u-panel .focus-btn span{
	font-size:13px;
	vertical-align:middle
}
.blk-top .top-main .top-u-panel .download-note-btn{
	display:inline-block;
	margin-left:12px;
	padding:8px 16px 8px 14px;
	border:2px solid #89c7f5;
	border-radius:100px;
	cursor:pointer
}
.blk-top .top-main .top-u-panel .download-note-btn:hover{
	border:2px solid #309ced
}
.blk-top .top-main .top-u-panel .download-note-btn .download-icon{
	height:25px;
	width:26px;
	display:inline-block
}
.blk-top .top-main .top-u-panel .download-note-btn img{
	vertical-align:middle
}
.blk-top .top-main .top-u-panel .download-note-btn span{
	font-size:13px;
	vertical-align:middle
}
.blk-top .top-main .top-btm-hr{
	position:absolute;
	bottom:0;
	width:100%;
	height:0;
	margin:0;
	border:none;
	border-bottom:1px solid #ffffff
}
.blk-top .top-main .blk-sidebar{
	z-index:1000;
	position:fixed
}
.blk-top .top-main .blk-sidebar .copy-note-btn{
	padding:5px 16px 5px 14px;
	border:2px solid #55aef0;
	border-radius:100px;
	background-color:#55aef0;
	cursor:pointer
}
.blk-top .top-main .blk-sidebar .copy-note-btn:hover{
	border:2px solid #309ced;
	background-color:#309ced
}
.blk-top .top-main .blk-sidebar .copy-note-btn img{
	vertical-align:middle
}
.blk-top .top-main .blk-sidebar .copy-note-btn span{
	font-size:13px;
	color:#fff;
	vertical-align:middle
}
.blk-top .top-main .blk-sidebar .download-note-btn{
	margin-top:14px;
	padding:5px 16px 5px 14px;
	border:2px solid #89c7f5;
	border-radius:100px;
	cursor:pointer
}
.blk-top .top-main .blk-sidebar .download-note-btn:hover{
	border:2px solid #309ced
}
.blk-top .top-main .blk-sidebar .download-note-btn .download-icon{
	height:25px;
	width:26px;
	display:inline-block
}
.blk-top .top-main .blk-sidebar .download-note-btn img{
	vertical-align:middle
}
.blk-top .top-main .blk-sidebar .download-note-btn span{
	font-size:13px;
	vertical-align:middle
}
.blk-top .top-main .wechat-popup{
	position:relative;
	display:none
}
.blk-top .top-main .wechat-popup img{
	position:absolute;
	z-index:10000;
	top:-20px;
	right:3px
}
.blk-top .top-main .wechat-popup .wechat-close{
	width:15px;
	height:15px;
	position:absolute;
	z-index:10001;
	top:-10px;
	right:7px;
	cursor:pointer
}
.single-note .blk-mid{
	position:relative;
	min-width:800px
}
.single-note .blk-main{
	min-height:100%;
	max-width:917px;
	margin:0 auto;
	background-color:#fff
}
.single-note .blk-main .blk-note{
	padding:0px;
	border-right:1px solid #e6e6e6
}
.single-note .blk-main .blk-note .blk-bd .note-title{
	position:relative
}
.single-note .blk-main .blk-note .blk-bd .note-title .note-title-text{
	padding:20px 0px 10px 34px;
	font-size:26px;
	line-height:1.3;
	width:625px;
	display:inline-block
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info{
	margin-left:32px;
	padding-bottom:25px;
	font-size:13px;
	color:#666;
	border-bottom:1px solid #e6e6e6
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info .meta-item{
	display:inline-block;
	margin:5px 20px 5px 0px
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info .meta_icon{
	vertical-align:top;
	margin-right:5px
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info .meta-col{
	vertical-align:top
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info .meta_create_icon{
	margin-left:0px
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info span{
	vertical-align:top
}
.single-note .blk-main .blk-note .blk-bd .meta .meta-info a{
	display:inline-block;
	width:120px;
	text-overflow:ellipsis;
	overflow:hidden;
	vertical-align:top
}
.single-note .blk-main .blk-note .blk-bd .note-viewer-container .note-viewer{
	margin-left:32px;
	margin-right:32px
}
.single-note .blk-main .blk-note .blk-bd .note-viewer-container .note-viewer .note-content{
	margin-top:10px;
	min-height:400px
}
.single-note .blk-main .blk-note .blk-bd .note-viewer-container .note-viewer .note-content img{
	max-width:100%
}
.single-note .blk-note .pop-note{
	display:none
}
.single-note .blk-note{
	width:688px;
	height:100%
}
.single-note .note-content-wrapper{
	padding:10px 10px
}
.single-note .app-section{
	text-align:center;
	margin-top:10px
}
.single-note .app-section a{
	display:inline-block;
	width:270px;
	height:15px;
	line-height:15px;
	text-decoration:none;
	border-radius:6px;
	font-size:15px;
	padding:10px 0;
	font-weight:bold
}
.single-note .btns{
	text-align:center
}
.single-note .btns .app-section{
	display:inline-block;
	width:140px
}
.single-note .btns .btn{
	width:130px
}
.note-viewer-container span,.note-viewer-container p,.note-viewer-container div{
	line-height:1.8
}
.note-viewer-container table{
	max-width:100% !important
}
.blk-hd{
	position:relative;
	height:28px;
	padding:6px 10px;
	background:#f5f5f5;
	border-bottom:1px solid #dedede
}
.blk-ft{
	padding:5px 10px
}
.blk-expand .show{
	display:block
}
.blk-expand .btn{
	line-height:1;
	padding:5px;
	font-weight:normal
}
.blk-expand .select-btn{
	padding-right:18px
}
.blk-expand .select-btn .ico-arrow-down{
	top:9px;
	right:5px
}
.blk-expand .tag-btn:hover{
	padding-right:22px;
	margin-right:0
}
.blk-mid .blk-main{
	padding:0
}
.blk-mid .blk-main .blk-note{
	padding-left:275px;
	height:100%
}
.blk-mid .blk-main .blk-note img{
	max-width:100%
}
.single-note{
	overflow:auto
}
.single-note .blk-main{
	max-width:917px;
	margin:0 auto;
	position:relative;
	background-color:#fff
}
.single-note .blk-main .blk-note{
	padding:0px
}
.main-wrap{
	max-width:917px;
	min-width:300px;
	margin:0 auto
}
.content-wrap{
	overflow:hidden;
	background-color:#fff
}
.content-wrap a{
	word-break:break-all
}
.headline{
	border-bottom:4px solid #f6f6f6
}
.headline-title.onlyheading{
	margin:20px 0
}
.headline img{
	max-width:100%;
	vertical-align:top
}
html.no-touch .headline-background:hover{
	background-color:#fdfdfd
}
.headline-background-link{
	line-height:2em;
	position:relative;
	padding:25px 40px;
	display:block;
	text-decoration:none
}
.icon-arrow-right{
	position:absolute;
	top:50%;
	right:20px;
	margin-top:-10px
}
.headline-background .heading{
	color:#999;
	font-size:20px;
	margin-bottom:5px
}
.headline-background .heading-content{
	font-size:24px;
	color:#444;
	text-decoration:none
}
.img-wrap{
	position:relative;
	max-height:375px;
	overflow:hidden
}
.img-wrap img{
	margin-top:-18%;
	width:640px
}
.img-wrap .img-source{
	position:absolute;
	bottom:10px;
	z-index:1;
	font-size:12px;
	color:rgba(255,255,255,.6);
	right:40px;
	text-shadow:0px 1px 2px rgba(0,0,0,.3)
}
.img-mask{
	position:absolute;
	top:0;
	width:100%;
	height:100%;
	background:-moz-linear-gradient(top,rgba(0,0,0,0) 25%,rgba(0,0,0,0.6) 100%);
	background:-webkit-gradient(linear,left top,left bottom,color-stop(25%,rgba(0,0,0,0)),color-stop(100%,rgba(0,0,0,0.6)));
	background:-webkit-linear-gradient(top,rgba(0,0,0,0) 25%,rgba(0,0,0,0.6) 100%);
	background:-o-linear-gradient(top,rgba(0,0,0,0) 25%,rgba(0,0,0,0.6) 100%);
	background:-ms-linear-gradient(top,rgba(0,0,0,0) 25%,rgba(0,0,0,0.6) 100%);
	background:linear-gradient(to bottom,rgba(0,0,0,0) 25%,rgba(0,0,0,0.6) 100%);
	filter:progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000',endColorstr='#99000000',GradientType=0 )
}
.headline-title{
	margin:20px 0 10px;
	font-size:30px;
	line-height:1.2em;
	padding:0 40px;
	color:#222
}
.img-wrap .headline-title{
	margin:20px 0;
	bottom:10px;
	z-index:1;
	position:absolute;
	color:white;
	text-shadow:0px 1px 2px rgba(0,0,0,0.3)
}
.headline-summary{
	padding:20px 40px 0
}
.meta{
	white-space:nowrap;
	text-overflow:ellipsis;
	overflow:hidden;
	font-size:16px;
	color:#b8b8b8
}
.meta span{
	vertical-align:middle
}
.meta .source-icon{
	width:20px;
	height:20px
}
.meta .time{
	float:right;
	margin-top:2px
}
.meta .source-icon{
	margin-right:4px
}
.meta .source{
	vertical-align:middle
}
.content{
	color:#444;
	line-height:2em;
	margin:10px 0 25px
}
.content img{
	max-width:100%;
	width: auto;
	height: auto;
	margin: 0 auto;
	text-align: center;
	display: block;
}
.content img[src*="zhihu.com/equation"]{
	display:inline-block;
	margin:0 3px
}
.content a{
	color:#105CB6;
	text-decoration:none
}
.content a:hover{
	text-decoration:underline
}
.view-more{
	text-align:right;
	margin-bottom:30px
}
.view-more a{
	color:#698ebf;
	font-size:14px;
	text-decoration:none
}
html.no-touch .view-more a:hover{
	text-decoration:underline
}
.question{
	padding:0 40px;
	overflow:hidden
}
.question+.question{
	border-top:5px solid #f6f6f6
}
.question-title{
	font-size:22px;
	line-height:1.4em;
	color:#222;
	font-weight:bold;
	margin:25px 0
}
.meta .author{
	color:#444
}
.meta .avatar{
	width:20px;
	height:20px;
	border-radius:2px;
	margin-right:5px
}
.meta .bio{
	color:#999
}
.answer+.answer{
	border-top:2px solid #f6f6f6;
	padding-top:30px
}
.qr{
	background-color:#fff;
	text-align:center;
	border-top:5px solid #F6F6F6;
	padding:25px
}
.qr .heading{
	font-size:18px;
	color:#555
}
.qr .subheading{
	font-size:14px;
	color:#b8b8b8
}
.qr-wrap{
	padding-top:25px;
	padding-bottom:15px
}
.footer{
	padding:20px 0;
	text-align:center;
	color:#b8b8b8;
	font-size:13px;
	line-height: 4;
	
}
.footer a{
	color:#b8b8b8;
	text-decoration:none
}

a.download-btn{
	display:inline-block;
	height:60px;
	line-height:60px;
	width:280px;
	border:1px solid #b8b8b8;
	background-color:#fdfdfd;
	font-size:17px;
	border-radius:10px;
	color:#444
}
html.no-touch .footer a:hover{
	text-decoration:underline
}

table{border-collapse:collapse;border-spacing:0;}
.content-inner table{border-top:solid 1px #ddd;border-left:solid 1px #ddd;width: 100%;margin-bottom: 16px;}
.content-inner table th{background-color:#f9f9f9;text-align:center}
.content-inner table td,.article-entry table th{border-bottom:solid 1px #ddd;border-right:solid 1px #ddd;padding:5px 10px}
.article-nav{border-top:1px solid #f2f2f2;background-color:#FBFBFB;overflow:hidden;padding:15px 20px;font-size:14px;color:#bbb}
.article-nav span{float:left;position:relative}
.article-nav span.article-nav-next{float:right;text-align:right}

#cyEmoji li {background:white;}

@media (max-width:960px) {
.top-logo {
	text-align:center;
}
.footer{display:none}
.content img{width:480px}
}
@media (max-width:480px){
	
body{
	padding-top:0
}
.share-box{display:none}
 .article-nav .footer{display:none}
.top-u-panel {display: none}
blockquote,sup{
	line-height:1.4em
}
.global-header .main-wrap{
	margin:0 10px
}



.article-nav span.article-nav-next {
	display:block;
	padding-top: 10px;
	float:left;
}
.footer{
	background-color:white;
	padding:0px 0 15px
}
.footer-download{
	display:block
}
.download-banner{
	display:block
}
.icon-arrow-right{
	background-repeat:no-repeat;
	display:inline-block;
	vertical-align:middle;
	background-position:-70px -20px;
	width:10px;
	height:15px;
	margin-top:-7.5px
}
.img-wrap .headline-title{
	bottom:5px
}
.content{
	line-height:1.6em;
	margin:10px 0 20px;
	font-size:17px
}
.img-wrap .img-source{
	right:10px !important;
	font-size:9px
}
.headline-background-link{
	padding:20px 45px 20px 20px !important
}
.headline-title{
	font-size:21px;
	padding:0 20px !important
}
.question-title{
	font-size:19px;
	margin:20px 0
}
.headline-background .heading{
	font-size:15px !important;
	margin-bottom:8px;
	line-height:1em
}
.headline-background .heading-content{
	font-size:17px !important;
	line-height:1.2em
}
.question{
	padding:0 20px !important
}
.global-header{
	display:none
}
.button{
	width:60px
}
.button i{
	margin-right:0
}
.answer+.answer{
	padding-top:20px
}
.button span{
	display:none
}
.view-more{
	margin-bottom:25px
}

}
code,pre{
	padding:0 3px 2px;
	font-family:Monaco,Menlo,Consolas,"Courier New",monospace;
	font-size:10px;
	color:#444444;
	border-radius:3px
}
code{
	padding:2px 4px;
	color:#d14;
	background-color:#fbfbfb;
	border:1px solid #e1e1e8;
	word-break:break-all;
	word-wrap:break-word;
}
pre{
	display:block;
	padding:9.5px;
	margin:0 0 10px;
	font-size:11px;
	line-height:20px;
	word-break:break-all;
	word-wrap:break-word;
	white-space:pre;
	white-space:pre-wrap;
	background-color:#f1fedd;
	border:1px solid #ccc;
	border:1px solid rgba(0,0,0,0.15);
	border-radius:2px
}
pre.prettyprint{
	margin-bottom:20px
}
pre code{
	padding:0;
	color:inherit;
	white-space:pre;
	white-space:pre-wrap;
	background-color:transparent;
	border:0
}
.pre-scrollable{
	max-height:340px;
	overflow-y:scroll
}
.content-inner {font-size: 14px;}
.content-inner ul li{background:url(data:image/gif;base64,R0lGODlhDQAFAKIAAKOjo6GhoampqYSEhJWVlZ2dnZmZmXx8fCH5BAAAAAAALAAAAAANAAUAAAMVKLfcB6PIScsZJuttLvlgSByK4wQJADs=) no-repeat 0 10px;padding-left:20px;margin-bottom:10px;*list-style:disc;*padding-left:0;line-height:25px}
.content-inner ol li{list-style:decimal;margin-left:28px;line-height:25px}

.content-inner h4， .content-inner h5{
	border-bottom:#eee 1px solid;
	padding-bottom:5px;
	margin-bottom:20px
}
.content-inner h3{ 
	font-size:20px;
	font-weight:normal;
	margin:20px -20px 20px -20px;
	padding:10px 20px 9px 20px;
	line-height:26px;
	border-left:4px solid #67AD03;
	background-color:#fbfbfb;
	
}
.content-inner h4{
	font-size:18px
}
.content-inner h5{
	font-size:12px
}
.content-inner ul{
	margin:0 0 16px 26px
}
.content-inner ol{
	margin:16px
}
/*百度分享 2012-04-27 by @liuxg*/
.share-box .share-box-top, .share-box-bottom,.share-box .bds_tools_32 a.shareCount {background: url("../img/share_bg.png")/*tpa=http://www.w3cschool.cc/wp-content/themes/w3cschool.cc/assets/img/share_bg.png*/ no-repeat !important}
.share-box{position:fixed;_position:absolute; left:50%;  margin-left:455px; width:63px; top:130px;}
.share-box-fixed {position:fixed; top:80px;}
.share-box-top {height:30px; background-position:0 0; text-indent:-9999em; overflow:hidden}
.share-box .share-box-bottom {height:5px; font:0/0 arial ; background-position:0 -35px !important}
.share-box-inner {padding-bottom:10px; border-left:1px solid #e9f3f8; border-right:1px solid #e9f3f8; overflow:hidden; 
zoom:1; background:#f5f8fd}
.share-box #bdshare a,.share-box .bds_tools_32 span.bds_more {_display: inline; margin:4px 0 0 10px; font-family: arial !important}
.share-box .bds_tools_32 a.shareCount,.share-box .bds_tools_32 a.shareCount:hover {padding:4px 0 0 0; margin:2px 0 0 5px !important; 
width:50px; height:31px; background-position:0 -45px !important; line-height:31px; text-align:center; color:#fff !important; 
text-decoration:none}
.share-box .shareCount {display: none}