* {
  box-sizing: border-box; }

  html {
        overflow-x: initial !important;
    }
  
body {
  width: 100vw;
  height: 100vh;
  overflow: auto; }

body {
  padding: 2em 2em 2em 17em;
  font-size: 16px;
  line-height: 1.6;
  font-family: 'Frank Ruhl Libre', sans-serif; }

div .word{
	text-align: justify;
}

a.url {
        word-break: break-all;
    }
  
.toc {
  position: fixed;
  left: 1em;
  top: 5em;
  padding: 1em;
  width: 17em;
  line-height: 1.5	; }
  .toc ul {
    list-style: none;
    padding: 0;
    margin: 0; }
  .toc ul ul {
    padding-left: 2em; }
  .toc li a {
    display: inline-block;
    color: #aaa;
    text-decoration: none;
    -webkit-transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
            transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1); }
  .toc li.visible > a {
    color: #111;
    -webkit-transform: translate(5px);
        -ms-transform: translate(5px);
            transform: translate(5px); }

.toc-marker {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; }
  .toc-marker path {
    -webkit-transition: all 0.3s ease;
            transition: all 0.3s ease; }

.contents {
  padding: 6em;
  padding-top: 0em;
  max-width: 980px;
  font-size: 1.2em;
  font-family: 'Frank Ruhl Libre', sans-serif; }
  .contents img {
    max-width: 100%; }
  .contents .code-block {
    white-space: pre;
    overflow: auto;
    max-width: 100%; }
    .contents .code-block code {
      display: block;
      background-color: #f9f9f9;
      padding: 10px; }
  .contents .code-inline {
    background-color: #f9f9f9;
    padding: 4px; }
  .contents h2
h3 {
    padding-top: 0em; }
  .contents h2 {
    margin-top: 1.2em; }

@media screen and (max-width: 1200px) {
  body {
    font-size: 14px; } }

	

  
  

    a.url {
        word-break: break-all;
    }

    a:active, a:hover {
        outline: 0px;
    }

    .in-text-selection, ::selection {
        text-shadow: none;
        background: var(--select-text-bg-color);
        color: var(--select-text-font-color);
    }

    #write {
        margin: 0px auto;
        height: auto;
        width: inherit;
        word-break: normal;
        word-wrap: break-word;
        position: relative;
        white-space: normal;
        overflow-x: visible;
        padding-top: 40px;
    }

    #write.first-line-indent p {
        text-indent: 2em;
    }

    #write.first-line-indent li p, #write.first-line-indent p * {
        text-indent: 0px;
    }

    #write.first-line-indent li {
        margin-left: 2em;
    }

    .for-image #write {
        padding-left: 8px;
        padding-right: 8px;
    }

    body.typora-export {
        padding-left: 30px;
        padding-right: 30px;
    }

    .typora-export .footnote-line, .typora-export li, .typora-export p {
        white-space: pre-wrap;
    }

    .typora-export .task-list-item input {
        pointer-events: none;
    }

    @media screen and (max-width: 500px) {
        body.typora-export {
            padding-left: 0px;
            padding-right: 0px;
        }

        #write {
            padding-left: 20px;
            padding-right: 20px;
        }

        .CodeMirror-sizer {
            margin-left: 0px !important;
        }

        .CodeMirror-gutters {
            display: none !important;
        }
    }

    #write li > figure:last-child {
        margin-bottom: 0.5rem;
    }

    #write ol, #write ul {
        position: relative;
    }

    img {
        max-width: 100%;
        vertical-align: middle;
    }

    button, input, select, textarea {
        color: inherit;
        font-family: inherit;
        font-size: inherit;
        font-style: inherit;
        font-variant-caps: inherit;
        font-weight: inherit;
        font-stretch: inherit;
        line-height: inherit;
    }

    input[type="checkbox"], input[type="radio"] {
        line-height: normal;
        padding: 0px;
    }

    *, ::after, ::before {
        box-sizing: border-box;
    }

    #write h1, #write h2, #write h3, #write h4, #write h5, #write h6, #write p, #write pre {
        width: inherit;
    }

    #write h1, #write h2, #write h3, #write h4, #write h5, #write h6, #write p {
        position: relative;
    }

    p {
        line-height: inherit;
    }

 
    p {
        orphans: 4;
    }

  

    .md-math-block, .md-rawblock, h1, h2, h3, h4, h5, h6, p {
        margin-top: 1rem;
        margin-bottom: 1rem;
    }

    .hidden {
        display: none;
    }

    .md-blockmeta {
        color: rgb(204, 204, 204);
        font-weight: 700;
        font-style: italic;
    }

    a {
        cursor: pointer;
    }

    sup.md-footnote {
        padding: 2px 4px;
        background-color: rgba(238, 238, 238, 0.701961);
        color: rgb(85, 85, 85);
        border-top-left-radius: 4px;
        border-top-right-radius: 4px;
        border-bottom-right-radius: 4px;
        border-bottom-left-radius: 4px;
        cursor: pointer;
    }

    sup.md-footnote a, sup.md-footnote a:hover {
        color: inherit;
        text-transform: inherit;
        text-decoration: inherit;
    }

    #write input[type="checkbox"] {
        cursor: pointer;
        width: inherit;
        height: inherit;
    }

    figure {
        overflow-x: auto;
        margin: 1.2em 0px;
        max-width: calc(100% + 16px);
        padding: 0px;
    }

    figure > table {
        margin: 0px;
    }

    tr {
        break-inside: avoid;
        break-after: auto;
    }

    thead {
        display: table-header-group;
    }

    table {
        border-collapse: collapse;
        border-spacing: 0px;
        width: 100%;
        overflow: auto;
        break-inside: auto;
        text-align: left;
    }

    table.md-table td {
        min-width: 32px;
    }

    .CodeMirror-gutters {
        border-right-width: 0px;
        background-color: inherit;
    }

    .CodeMirror-linenumber {
    }

    .CodeMirror {
        text-align: left;
    }

    .CodeMirror-placeholder {
        opacity: 0.3;
    }

    .CodeMirror pre {
        padding: 0px 4px;
    }

    .CodeMirror-lines {
        padding: 0px;
    }

    div.hr:focus {
        cursor: none;
    }

    #write pre {
        white-space: pre-wrap;
    }

    #write.fences-no-line-wrapping pre {
        white-space: pre;
    }

    #write pre.ty-contain-cm {
        white-space: normal;
    }

    .CodeMirror-gutters {
        margin-right: 4px;
    }

    .md-fences {
        font-size: 0.9rem;
        display: block;
        break-inside: avoid;
        text-align: left;
        overflow: visible;
        white-space: pre;
        background-image: inherit;
        background-size: inherit;
        background-attachment: inherit;
        background-origin: inherit;
        background-clip: inherit;
        background-color: inherit;
        position: relative !important;
        background-position: inherit inherit;
        background-repeat: inherit inherit;
    }

    .md-diagram-panel {
        width: 100%;
        margin-top: 10px;
        text-align: center;
        padding-top: 0px;
        padding-bottom: 8px;
        overflow-x: auto;
    }

    #write .md-fences.mock-cm {
        white-space: pre-wrap;
    }

    .md-fences.md-fences-with-lineno {
        padding-left: 0px;
    }

    #write.fences-no-line-wrapping .md-fences.mock-cm {
        white-space: pre;
        overflow-x: auto;
    }

    .md-fences.mock-cm.md-fences-with-lineno {
        padding-left: 8px;
    }

    .CodeMirror-line, twitterwidget {
        break-inside: avoid;
    }

    .footnotes {
        opacity: 0.8;
        font-size: 0.9rem;
        margin-top: 1em;
        margin-bottom: 1em;
    }

    .footnotes + .footnotes {
        margin-top: 0px;
    }

    .md-reset {
        margin: 0px;
        padding: 0px;
        border: 0px;
        outline: 0px;
        vertical-align: top;
        text-decoration: none;
        text-shadow: none;
        float: none;
        position: static;
        width: auto;
        height: auto;
        white-space: nowrap;
        cursor: inherit;
        line-height: normal;
        font-weight: 400;
        text-align: left;
        box-sizing: content-box;
        direction: ltr;
        background-position: 0px 0px;
        background-repeat: initial initial;
    }

 

    blockquote > :last-child {
        margin-bottom: 0px;
    }

    blockquote > :first-child, li > :first-child {
        margin-top: 0px;
    }

    .footnotes-area {
        color: rgb(136, 136, 136);
        margin-top: 0.714rem;
        padding-bottom: 0.143rem;
        white-space: normal;
    }

    #write .footnote-line {
        white-space: pre-wrap;
    }

    @media print {
        body, html {
            border: 1px solid transparent;
            height: 99%;
            break-after: avoid-page;
            break-before: avoid-page;
            font-variant-ligatures: no-common-ligatures;
        }

        #write {
            margin-top: 0px;
            padding-top: 0px;
            border-color: transparent !important;
        }

        .typora-export * {
            -webkit-print-color-adjust: exact;
        }

        html.blink-to-pdf {
            font-size: 13px;
        }

        .typora-export #write {
            break-after: avoid-page;
        }

        .typora-export #write::after {
            height: 0px;
        }

        .is-mac table {
            break-inside: avoid;
        }
    }

    .footnote-line {
        margin-top: 0.714em;
        font-size: 0.7em;
    }

    a img, img a {
        cursor: pointer;
    }

    pre.md-meta-block {
        font-size: 0.8rem;
        min-height: 0.8rem;
        white-space: pre-wrap;
        background-color: rgb(204, 204, 204);
        display: block;
        overflow-x: hidden;
        background-position: initial initial;
        background-repeat: initial initial;
    }

    p > .md-image:only-child:not(.md-img-error) img, p > img:only-child {
        display: block;
        margin: auto;
    }

    #write.first-line-indent p > .md-image:only-child:not(.md-img-error) img {
        left: -2em;
        position: relative;
    }

    p > .md-image:only-child {
        display: inline-block;
        width: 100%;
    }

    #write .MathJax_Display {
        margin: 0.8em 0px 0px;
    }

    .md-math-block {
        width: 100%;
    }

    .md-math-block:not(:empty)::after {
        display: none;
    }

    [contenteditable="true"]:active, [contenteditable="true"]:focus, [contenteditable="false"]:active, [contenteditable="false"]:focus {
        outline: 0px;
        box-shadow: none;
    }

    .md-task-list-item {
        position: relative;
        list-style-type: none;
    }

    .task-list-item.md-task-list-item {
        padding-left: 0px;
    }

    .md-task-list-item > input {
        position: absolute;
        top: 0px;
        left: 0px;
        margin-left: -1.2em;
        margin-top: calc(1em - 10px);
        border: none;
    }

    .math {
        font-size: 1rem;
    }

    .md-toc {
        min-height: 3.58rem;
        position: relative;
        font-size: 0.9rem;
        border-top-left-radius: 10px;
        border-top-right-radius: 10px;
        border-bottom-right-radius: 10px;
        border-bottom-left-radius: 10px;
    }

    .md-toc-content {
        position: relative;
        margin-left: 0px;
    }

    .md-toc-content::after, .md-toc::after {
        display: none;
    }

    .md-toc-item {
        display: block;
        color: rgb(65, 131, 196);
    }

    .md-toc-item a {
        text-decoration: none;
    }

    .md-toc-inner:hover {
        text-decoration: underline;
    }

    .md-toc-inner {
        display: inline-block;
        cursor: pointer;
    }

    .md-toc-h1 .md-toc-inner {
        margin-left: 0px;
        font-weight: 700;
    }

    .md-toc-h2 .md-toc-inner {
        margin-left: 2em;
    }

    .md-toc-h3 .md-toc-inner {
        margin-left: 4em;
    }

    .md-toc-h4 .md-toc-inner {
        margin-left: 6em;
    }

    .md-toc-h5 .md-toc-inner {
        margin-left: 8em;
    }

    .md-toc-h6 .md-toc-inner {
        margin-left: 10em;
    }

    @media screen and (max-width: 48em) {
        .md-toc-h3 .md-toc-inner {
            margin-left: 3.5em;
        }

        .md-toc-h4 .md-toc-inner {
            margin-left: 5em;
        }

        .md-toc-h5 .md-toc-inner {
            margin-left: 6.5em;
        }

        .md-toc-h6 .md-toc-inner {
            margin-left: 8em;
        }
    }

    a.md-toc-inner {
        font-size: inherit;
        font-style: inherit;
        font-weight: inherit;
        line-height: inherit;
    }

    .footnote-line a:not(.reversefootnote) {
        color: inherit;
    }

    .md-attr {
        display: none;
    }

    .md-fn-count::after {
        content: ".";
    }

    code, pre, samp, tt {
        font-family: var(--monospace);
    }

    kbd {
        margin: 0px 0.1em;
        padding: 0.1em 0.6em;
        font-size: 0.8em;
        color: rgb(36, 39, 41);
        background-color: rgb(255, 255, 255);
        border: 1px solid rgb(173, 179, 185);
        border-top-left-radius: 3px;
        border-top-right-radius: 3px;
        border-bottom-right-radius: 3px;
        border-bottom-left-radius: 3px;
        box-shadow: rgba(12, 13, 14, 0.2) 0px 1px 0px, rgb(255, 255, 255) 0px 0px 0px 2px inset;
        white-space: nowrap;
        vertical-align: middle;
        background-position: initial initial;
        background-repeat: initial initial;
    }

    .md-comment {
        color: rgb(162, 127, 3);
        opacity: 0.8;
        font-family: var(--monospace);
    }

    code {
        text-align: left;
    }

    a.md-print-anchor {
        white-space: pre !important;
        border: none !important;
        display: inline-block !important;
        position: absolute !important;
        width: 1px !important;
        right: 0px !important;
        outline: 0px !important;
        text-shadow: initial !important;
        background-position: 0px 0px !important;
        background-repeat: initial initial !important;
    }

    .md-inline-math .MathJax_SVG .noError {
        display: none !important;
    }

    .html-for-mac .inline-math-svg .MathJax_SVG {
        vertical-align: 0.2px;
    }

    .md-math-block .MathJax_SVG_Display {
        text-align: center;
        margin: 0px;
        position: relative;
        text-indent: 0px;
        max-width: none;
        max-height: none;
        min-height: 0px;
        min-width: 100%;
        width: auto;
        overflow-y: hidden;
        display: block !important;
    }

    .MathJax_SVG_Display, .md-inline-math .MathJax_SVG_Display {
        width: auto;
        margin: inherit;
        display: inline-block !important;
    }

    .MathJax_SVG .MJX-monospace {
        font-family: var(--monospace);
    }

    .MathJax_SVG .MJX-sans-serif {
        font-family: sans-serif;
    }

    .MathJax_SVG {
        display: inline;
        font-style: normal;
        font-weight: 400;
        line-height: normal;
        zoom: 90%;
        text-indent: 0px;
        text-align: left;
        text-transform: none;
        letter-spacing: normal;
        word-spacing: normal;
        word-wrap: normal;
        white-space: nowrap;
        float: none;
        direction: ltr;
        max-width: none;
        max-height: none;
        min-width: 0px;
        min-height: 0px;
        border: 0px;
        padding: 0px;
        margin: 0px;
    }

    .MathJax_SVG * {
        transition: none;
    }

    .MathJax_SVG_Display svg {
        vertical-align: middle !important;
        margin-bottom: 0px !important;
        margin-top: 0px !important;
    }

    .os-windows.monocolor-emoji .md-emoji {
        font-family: "Segoe UI Symbol", sans-serif;
    }

    .md-diagram-panel > svg {
        max-width: 100%;
    }

    [lang="flow"] svg, [lang="mermaid"] svg {
        max-width: 100%;
        height: auto;
    }

    [lang="mermaid"] .node text {
        font-size: 1rem;
    }

    table tr th {
        border-bottom-width: 0px;
    }

    video {
        max-width: 100%;
        display: block;
        margin: 0px auto;
    }

    iframe {
        max-width: 100%;
        width: 100%;
        border: none;
    }

    .highlight td, .highlight tr {
        border: 0px;
    }

    svg[id^="mermaidChart"] {
        line-height: 1em;
    }

    mark {
        background-color: rgb(255, 255, 0);
        color: rgb(0, 0, 0);
        background-position: initial initial;
        background-repeat: initial initial;
    }

    .md-html-inline .md-plain, .md-html-inline strong, mark .md-inline-math, mark strong {
        color: inherit;
    }

    mark .md-meta {
        color: rgb(0, 0, 0);
        opacity: 0.3 !important;
    }

    @media print {
        .typora-export h1, .typora-export h2, .typora-export h3, .typora-export h4, .typora-export h5, .typora-export h6 {
            break-inside: avoid;
        }

        .typora-export h1::after, .typora-export h2::after, .typora-export h3::after, .typora-export h4::after, .typora-export h5::after, .typora-export h6::after {
            content: "";
            display: block;
            height: 100px;
            margin-bottom: -100px;
        }
    }


    /* meyer reset -- http://meyerweb.com/eric/tools/css/reset/ , v2.0 | 20110126 | License: none (public domain) */

    @include-when-export url(https://fonts.loli.net/css?family=PT+Serif:400,400italic,700,700italic&subset=latin,cyrillic-ext,cyrillic,latin-ext);

    /* =========== */

    /* pt-serif-regular - latin */
    /* pt-serif-italic - latin */
    /* pt-serif-700 - latin */
    /* pt-serif-700italic - latin */
    :root {
        --active-file-bg-color: #dadada;
        --active-file-bg-color: rgba(32, 43, 51, 0.63);
        --active-file-text-color: white;
        --bg-color: #f3f2ee;
        --text-color: #1f0909;
        --control-text-color: #444;
        --rawblock-edit-panel-bd: #e5e5e5;

        --select-text-bg-color: rgba(32, 43, 51, 0.63);
        --select-text-font-color: white;
    }

    pre {
        --select-text-bg-color: #36284e;
        --select-text-font-color: #fff;
    }

   

    /*#write {
        overflow-x: auto;
        max-width: initial;
        padding-left: calc(50% - 17em);
        padding-right: calc(50% - 17em);
    }

    @media (max-width: 36em) {
         #write {
             padding-left: 1em;
            padding-right: 1em;
         }
    }*/

    #write {
        max-width: 40em;
    }

    @media only screen and (min-width: 1400px) {
        #write {
            max-width: 914px;
        }
    }

   
    blockquote,
    q {
        quotes: none;
    }

    blockquote:before,
    blockquote:after,
    q:before,
    q:after {
        content: '';
        content: none;
    }

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

    /* styles */

    /* ====== */

    /* headings */

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

    h1 {
        font-size: 1.875em;
        /*30 / 16*/
        line-height: 1.6em;
        /* 48 / 30*/
        margin-top: 2em;
    }

    h2,
    h3 {
        font-size: 1.3125em;
        /*21 / 16*/
        line-height: 1.15;
        /*24 / 21*/
        margin-top: 2.285714em;
        /*48 / 21*/
        margin-bottom: 1.15em;
        /*24 / 21*/
    }

    h3 {
        font-weight: normal;
    }

    h4 {
        font-size: 1.125em;
        /*18 / 16*/
        margin-top: 2.67em;
        /*48 / 18*/
    }

    h5,
    h6 {
        font-size: 1em;
        /*16*/
    }

    h1 {
        border-bottom: 1px solid;
        margin-bottom: 1.875em;
        padding-bottom: 0.8125em;
    }

    /* links */

    a {
        text-decoration: none;
        color: #065588;
    }

    a:hover,
    a:active {
        text-decoration: underline;
    }

    /* block spacing */

    p,
    blockquote,
    .md-fences {
        margin-bottom: 1.5em;
    }

   
    /* blockquote */

    blockquote {
        font-style: italic;
        border-left: 5px solid;
        margin-left: 2em;
        padding-left: 1em;
    }

    /* lists */

   

    /* tables */
    .md-meta, .md-before, .md-after {
        color: #999;
    }

    table {
        margin-bottom: 1.5em;
        /*24 / 16*/
        font-size: 1em;
        /* width: 100%; */
    }

    thead th,
    tfoot th {
        padding: .25em .25em .25em .4em;
        text-transform: uppercase;
    }

    th {
        text-align: left;
    }

    td {
        vertical-align: top;
        padding: .25em .25em .25em .4em;
    }

    code,
    .md-fences {
        background-color: #dadada;
    }

    code {
        padding-left: 2px;
        padding-right: 2px;
    }

    .md-fences {
        margin-left: 2em;
        margin-bottom: 3em;
        padding-left: 1ch;
        padding-right: 1ch;
    }

    pre,
    code,
    tt {
        font-size: .875em;
        line-height: 1.714285em;
    }

 

    .ty-table-edit {
        background-color: transparent;
    }

    thead {
        background-color: #dadada;
    }

    tr:nth-child(even) {
        background: #e8e7e7;
    }

    hr {
        border-color: #c5c5c5;
    }

    .task-list {
        padding-left: 1rem;
    }

    .md-task-list-item {
        padding-left: 1.5rem;
        list-style-type: none;
    }

    .md-task-list-item > input:before {
        content: '\221A';
        display: inline-block;
        width: 1.25rem;
        height: 1.6rem;
        vertical-align: middle;
        text-align: center;
        color: #ddd;
        background-color: #F3F2EE;
    }

    .md-task-list-item > input:checked:before,
    .md-task-list-item > input[checked]:before {
        color: inherit;
    }

    #write pre.md-meta-block {
        min-height: 1.875rem;
        color: #555;
        border: 0px;
        background: transparent;
        margin-top: -4px;
        margin-left: 1em;
        margin-top: 1em;
    }

    .md-image > .md-meta {
        color: #9B5146;
    }

    .md-image > .md-meta {
        font-family: Menlo, 'Ubuntu Mono', Consolas, 'Courier New', 'Microsoft Yahei', 'Hiragino Sans GB', 'WenQuanYi Micro Hei', serif;
    }


    #write > h3.md-focus:before {
        left: -1.5rem;
        color: #999;
        border-color: #999;
    }

    #write > h4.md-focus:before {
        left: -1.5rem;
        top: .25rem;
        color: #999;
        border-color: #999;
    }

    #write > h5.md-focus:before {
        left: -1.5rem;
        top: .0 .3125rem;
        color: #999;
        border-color: #999;
    }

    #write > h6.md-focus:before {
        left: -1.5rem;
        top: 0.3125rem;
        color: #999;
        border-color: #999;
    }

    .md-toc:focus .md-toc-content {
        margin-top: 19px;
    }

    .md-toc-content:empty:before {
        color: #065588;
    }

    .md-toc-item {
        color: #065588;
    }

    #write div.md-toc-tooltip {
        background-color: #f3f2ee;
    }

    #typora-sidebar {
        background-color: #f3f2ee;
        -webkit-box-shadow: 0 6px 12px rgba(0, 0, 0, 0.375);
        box-shadow: 0 6px 12px rgba(0, 0, 0, 0.375);
    }

    .pin-outline #typora-sidebar {
        background: inherit;
        box-shadow: none;
        border-right: 1px dashed;
    }

    .pin-outline #typora-sidebar:hover .outline-title-wrapper {
        border-left: 1px dashed;
    }

    .outline-item:hover {
        background-color: #dadada;
        border-left: 28px solid #dadada;
        border-right: 18px solid #dadada;
    }

    .typora-node .outline-item:hover {
        border-right: 28px solid #dadada;
    }

    .outline-expander:before {
        content: "\f0da";
        font-family: FontAwesome;
        font-size: 14px;
        top: 1px;
    }

    .outline-expander:hover:before,
    .outline-item-open > .outline-item > .outline-expander:before {
        content: "\f0d7";
    }

    .modal-content {
        background-color: #f3f2ee;
    }

    .auto-suggest-container ul li {
        list-style-type: none;
    }

    /** UI for electron */

    .megamenu-menu,
    #top-titlebar, #top-titlebar *,
    .megamenu-content {
        background: #f3f2ee;
        color: #1f0909;
    }

    .megamenu-menu-header {
        border-bottom: 1px dashed #202B33;
    }

    .megamenu-menu {
        box-shadow: none;
        border-right: 1px dashed;
    }

    header, .context-menu, .megamenu-content, footer {
        font-family: "PT Serif", 'Times New Roman', Times, serif;
        color: #1f0909;
    }

    #megamenu-back-btn {
        color: #1f0909;
        border-color: #1f0909;
    }

    .megamenu-menu-header #megamenu-menu-header-title:before {
        color: #1f0909;
    }

    .megamenu-menu-list li a:hover, .megamenu-menu-list li a.active {
        color: inherit;
        background-color: #e8e7df;
    }

    .long-btn:hover {
        background-color: #e8e7df;
    }

    #recent-file-panel tbody tr:nth-child(2n-1) {
        background-color: transparent !important;
    }

    .megamenu-menu-panel tbody tr:hover td:nth-child(2) {
        color: inherit;
    }

    .megamenu-menu-panel .btn {
        background-color: #D2D1D1;
    }

    .btn-default {
        background-color: transparent;
    }

    .typora-sourceview-on #toggle-sourceview-btn,
    .ty-show-word-count #footer-word-count {
        background: #c7c5c5;
    }

    #typora-quick-open {
        background-color: inherit;
    }

    .md-diagram-panel {
        margin-top: 8px;
    }

    .file-list-item-file-name {
        font-weight: initial;
    }

    .file-list-item-summary {
        opacity: 1;
    }

    .file-list-item {
        color: #777;
    }

    .file-list-item.active {
        background-color: inherit;
        color: black;
    }

    .ty-side-sort-btn.active {
        background-color: inherit;
    }

    .file-list-item.active .file-list-item-file-name {
        font-weight: bold;
    }

    .file-list-item {
        opacity: 1 !important;
    }

    .file-library-node.active > .file-node-background {
        background-color: rgba(32, 43, 51, 0.63);
        background-color: var(--active-file-bg-color);
    }

    .file-tree-node.active > .file-node-content {
        color: white;
        color: var(--active-file-text-color);
    }

    .md-task-list-item > input {
        margin-left: -1.7em;
        margin-top: calc(1rem - 12px);
    }

    input {
        border: 1px solid #aaa;
    }

    .megamenu-menu-header #megamenu-menu-header-title,
    .megamenu-menu-header:hover,
    .megamenu-menu-header:focus {
        color: inherit;
    }

    .dropdown-menu .divider {
        border-color: #e5e5e5;
    }

    /* https://github.com/typora/typora-issues/issues/2046 */
    .os-windows-7 strong,
    .os-windows-7 strong {
        font-weight: 760;
    }

    .ty-preferences .btn-default {
        background: transparent;
    }

    .ty-preferences .window-header {
        border-bottom: 1px dashed #202B33;
        box-shadow: none;
    }

    #sidebar-loading-template, #sidebar-loading-template.file-list-item {
        color: #777;
    }

    .searchpanel-search-option-btn.active {
        background: #777;
        color: white;
    }

    .typora-export li, .typora-export p, .typora-export, .footnote-line {
        white-space: normal;
    }