@include-when-export url(http://fonts.googleapis.com/css?family=Open+Sans:400italic,700italic,700,400&subset=latin,latin-ext);@font-face{font-family:open sans;font-style:normal;font-weight:400;src:local('Open Sans Regular'),url(./github/400.woff) format('woff')}@font-face{font-family:open sans;font-style:italic;font-weight:400;src:local('Open Sans Italic'),url(./github/400i.woff) format('woff')}@font-face{font-family:open sans;font-style:normal;font-weight:700;src:local('Open Sans Bold'),url(./github/700.woff) format('woff')}@font-face{font-family:open sans;font-style:italic;font-weight:700;src:local('Open Sans Bold Italic'),url(./github/700i.woff) format('woff')}html{font-size:16px}body{font-family:open sans,clear sans,helvetica neue,Helvetica,Arial,sans-serif;color:#333;line-height:1.6}#write{max-width:800px;margin:0 auto;padding:20px 30px 40px;padding-top:20px}#write:after{height:80px}#write>ul:first-child,#write>ol:first-child{margin-top:30px}body>*:first-child{margin-top:0!important}body>*:last-child{margin-bottom:0!important}a{color:#4183c4}h1,h2,h3,h4,h5,h6{position:relative;margin-top:1rem;margin-bottom:1rem;font-weight:700;line-height:1.4;cursor:text}h1:hover a.anchor,h2:hover a.anchor,h3:hover a.anchor,h4:hover a.anchor,h5:hover a.anchor,h6:hover a.anchor{text-decoration:none}h1 tt,h1 code{font-size:inherit}h2 tt,h2 code{font-size:inherit}h3 tt,h3 code{font-size:inherit}h4 tt,h4 code{font-size:inherit}h5 tt,h5 code{font-size:inherit}h6 tt,h6 code{font-size:inherit}h1{padding-bottom:.3em;font-size:2.25em;line-height:1.2;border-bottom:1px solid #eee}h2{padding-bottom:.3em;font-size:1.75em;line-height:1.225;border-bottom:1px solid #eee}h3{font-size:1.5em;line-height:1.43}h4{font-size:1.25em}h5{font-size:1em}h6{font-size:1em;color:#777}p,blockquote,ul,ol,dl,table{margin:.8em 0}li>ol,li>ul{margin:0}hr{height:4px;padding:0;margin:16px 0;background-color:#e7e7e7;border:0;overflow:hidden;box-sizing:content-box;border-bottom:1px solid #ddd}body>h2:first-child{margin-top:0;padding-top:0}body>h1:first-child{margin-top:0;padding-top:0}body>h1:first-child+h2{margin-top:0;padding-top:0}body>h3:first-child,body>h4:first-child,body>h5:first-child,body>h6:first-child{margin-top:0;padding-top:0}a:first-child h1,a:first-child h2,a:first-child h3,a:first-child h4,a:first-child h5,a:first-child h6{margin-top:0;padding-top:0}h1 p,h2 p,h3 p,h4 p,h5 p,h6 p{margin-top:0}li p.first{display:inline-block}ul,ol{padding-left:30px}ul:first-child,ol:first-child{margin-top:0}ul:last-child,ol:last-child{margin-bottom:0}blockquote{border-left:4px solid #ddd;padding:0 15px;color:#777}blockquote blockquote{padding-right:0}table{padding:0}table tr{border-top:1px solid #ccc;background-color:#fff;margin:0;padding:0}table tr:nth-child(2n){background-color:#f8f8f8}table tr th{font-weight:700;border:1px solid #ccc;text-align:left;margin:0;padding:6px 13px}table tr td{border:1px solid #ccc;text-align:left;margin:0;padding:6px 13px}table tr th:first-child,table tr td:first-child{margin-top:0}table tr th:last-child,table tr td:last-child{margin-bottom:0}.CodeMirror-gutters{border-right:1px solid #ddd}pre.md-fences,.md-fences,code,tt{border:1px solid #ddd;background-color:#f8f8f8;border-radius:3px;padding:0;font-family:Consolas,liberation mono,Courier,monospace;padding:2px 4px 0;font-size:.9em}pre.md-fences,.md-fences{margin-bottom:15px;margin-top:15px;padding:.2em 1em;padding-top:8px;padding-bottom:6px}.task-list{padding-left:0}.task-list-item{padding-left:32px}.task-list-item input{top:3px;left:8px}@media screen and (min-width:914px){}@media print{html{font-size:13px}table,pre{page-break-inside:avoid}pre{word-wrap:break-word}}.md-fences{background-color:#f8f8f8}#write pre.md-meta-block{padding:1rem;font-size:85%;line-height:1.45;background-color:#f7f7f7;border:0;border-radius:3px;color:#777;margin-top:0!important}.mathjax-block>.code-tooltip{bottom:.375rem}#write>h3.md-focus:before{left:-1.5625rem;top:.375rem}#write>h4.md-focus:before{left:-1.5625rem;top:.285714286rem}#write>h5.md-focus:before{left:-1.5625rem;top:.285714286rem}#write>h6.md-focus:before{left:-1.5625rem;top:.285714286rem}.md-image>.md-meta{border:1px solid #ddd;background-color:#f8f8f8;border-radius:3px;font-family:Consolas,liberation mono,Courier,monospace;padding:2px 4px 0;font-size:.9em;color:inherit}.md-tag{color:inherit}.md-toc{margin-top:20px;padding-bottom:20px}#typora-quick-open{border:1px solid #ddd;background-color:#f8f8f8}#typora-quick-open-item{background-color:#fafafa;border-color:#fefefe #e5e5e5 #e5e5e5 #eee;border-style:solid;border-width:1px}.on-focus-mode blockquote{border-left-color:rgba(85,85,85,.12)}