book.css

@font-face{
    font-family: 'Source Code Pro';
    font-weight: 100;
    font-style: normal;
    font-stretch: normal;
    src: url('fonts/SourceCodePro-Light.otf.woff') format('woff');
}

@font-face{
    font-family: 'Source Code Pro';
    font-weight: 400;
    font-style: normal;
    font-stretch: normal;
    src: url('fonts/SourceCodePro-Regular.otf.woff') format('woff');
}

@font-face{
    font-family: 'Source Sans Pro';
    font-weight: 100;
    font-style: normal;
    font-stretch: normal;
    src: url('fonts/SourceSansPro-Light.otf.woff') format('woff');
}

@font-face{
    font-family: 'Source Sans Pro';
    font-weight: 400;
    font-style: normal;
    font-stretch: normal;
    src: url('fonts/SourceSansPro-Regular.otf.woff') format('woff');
}

@font-face{
    font-family: 'Source Sans Pro';
    font-weight: 100;
    font-style: italic;
    font-stretch: normal;
    src: url('fonts/SourceSansPro-LightIt.otf.woff') format('woff');
}

@font-face{
    font-family: 'Source Sans Pro';
    font-weight: 400;
    font-style: italic;
    font-stretch: normal;
    src: url('fonts/SourceSansPro-It.otf.woff') format('woff');
}

html {
}

body {
    color: #222;
    font-family: 'Source Sans Pro', sans-serif;
    font-size: 18px;
    font-weight: 100;
    line-height: 1.5em;
    padding: 1em;
    margin: auto;
    max-width: 42em;
    background: #fff;
    counter-reset: h1 h2 h3;
}

strong {
    font-weight: 400;
}

p {
    margin: 1em 0;
    text-align: justify;
}

/* --- Links --------------------------------------------------------------- */
a {
    color: #06e;
    text-decoration:none;
}
a:visited {
    color: #06e;
}
a:hover {
    color: #06e;
    border-bottom: .5px solid #06e;
}
a:active {
    color:#000000;
}

/* --- Headers ------------------------------------------------------------- */
h1::before {
    content: counter(h1) "";
    counter-increment: h1;
    margin-right:10px;
    color: white;
    background-color: black;
    padding-left: 10px; padding-right:10px;
}
h2::before {
    content: counter(h1) "."counter(h2) " ";
    counter-increment: h2;
    margin-right: 10px;
}
h3::before {
/*
    content: counter(h1) "."counter(h2) "."counter(h3) " ";
    counter-increment: h3;
    margin-right:10px;
*/
}


::selection {
    color: #000;
    background-color: #f0f0ff;
}

h1, h2, h3 {
    padding: 15px 0 3px;
    clear: both;
    font-weight: 400;
}
h1 { font-size: 1.5em; counter-reset: h2;   padding-top: 2.5em;}
h2 { font-size: 1.25em;  counter-reset: h3; padding-top: 1.5em;}
h3, h4, h5, h6 { font-size: 1.00em; }
h1, h1 a, h1 a:visited,
h2, h2 a, h2 a:visited,
h3, h3 a, h3 a:visited {
    color: black;
    text-decoration: none;
}
h1, h1 a, h1 a:visited {
    color: black;
    margin-top: 3em;
    padding-left:  5%;
    margin-left:  -5%;
    text-decoration: none;
}
h1 {
    border-bottom: 2px solid black;
}

h1 a:hover {
     color: #06e;
/*       color: white;
       background-color: black; */
}
h2 a:hover, h3 a:hover {
    color: black;
    border-bottom: 1px solid black;
}

/* --- Images -------------------------------------------------------------- */
.bordered {
    border: 1px solid black;
}

/* --- Table of contents --------------------------------------------------- */
.main-content {
    padding-top: 1em;
}
    
.main-content .topic-title {
    border-bottom: 1px solid black;
    padding-left:  5%;
    margin-left:  -5%;
}

.main-content ul.simple {
    padding-left: 0;
    column-count: 3;
    -moz-column-count: 3;
    -webkit-column-count: 3;
}

.main-content ul ul {
    padding-left: 1em;
}

.main-content ul.simple li {
    color: #06e;
    font-weight: 400;
    list-style-type: decimal;
    list-style-position: inside;
/*  list-style-type: none;*/
}

.main-content ul.simple li li {
    font-weight: 200;
    list-style-type: none;
}
.main-content ul.simple li li:before {
    content: "•"; /* Insert content that looks like bullets */
    padding-right: 0.5em;
}




/* --- Title/Subtitle ------------------------------------------------------ */
h1.title::before { content: none; }
h1.title {
    font-size: 2.5em;
    font-weight: 500;
    text-align: center;
    margin: 0;
    margin-top:    64px;
    margin-bottom: 12px;
    padding: 0;
    border: none;
}
h2.subtitle::before { content: none; }
h2.subtitle {
    font-size: 1.0em;
    font-weight: 500;
    text-align: center;
    padding: 0;
}
.title-logos {
    /* opacity: 0.15; */
    text-align: center;
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 64px;
}
.title-logos p {
    text-align: center;
}

    
/* --- Math ---------------------------------------------------------------- */
span.formula,
div.formula {
    color: #955;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
}

/* --- Code ---------------------------------------------------------------- */
code {
    font-size: 95%;
    font-weight: 300;
    font-family: 'Source Code Pro';
}
pre.code,
pre.output {
    font-size:      85%;
    font-family:    'Source Code Pro', monospace;
    line-height:    125%;
    padding-left:   2.0em;
    padding-top:    0.5em;
    padding-bottom: 0.5em;
    overflow-x: auto;
}
pre.code {

    background:     #fcfcfc;
    border-top:     .5px solid #ccc;
    border-bottom:  .5px solid #ccc;
}
pre.output {
    background:     #fff;
    border:         none;

}

.function, .class {
    font-weight: 400;
}
.comment {
    color: #459;
}

/* --- Bibliography -------------------------------------------------------- */
.abstract {
    border-left: 1px solid #ddd;
    padding-left: 1em;
    font-size:    85%;
    line-height: 125%;
}
.line-block {
    line-height: 125%;
}

/* --- Tables -------------------------------------------------------------- */
table {
    margin-left: auto;
    margin-right: auto;
    min-width: 33%;
    border-collapse: collapse;
    border-spacing: 0;
    border: none;
    border-bottom: .5px solid #999999;
}
td, th {
    border: none;
}
th {
    text-align: left; 
    font-weight: 400; /* Make sure they're bold */
    border-bottom: 1px solid black;
}
td {
    text-align: left; 
    border: none;
}
tr:nth-child(even) td {
    background: #f0f0f0;
}

/* --- Admonitions --------------------------------------------------------- */
.note {
    font-size: 85%;
    line-height: 125%;
    float: left;
    width: 240px;
    padding: 0;
    margin-left: -270px;
}
.note p {
    text-align: left;
    padding: 0;
    margin:0;
    padding-top: 0.5em;
}
.note p.first {
    padding: 0;
    padding-bottom: .5em;
    font-weight: 400;
    border-bottom: 1px solid #000;
}

.legend {
    font-size: 85%;
    line-height: 125%;
    padding: 0;
    float: right;
    width: 240px;
    margin-right: -270px;
}
.legend p {
    text-align: left;
    padding: 0;
    margin:0;
    padding-top: 0.5em;
}
.legend p.first {
    padding: 0;
    padding-bottom: .5em;
    font-weight: 400;
    border-bottom: 1px solid #000;
}

@media all and (max-width: 1400px) {
    .note,
    .legend {
        box-sizing: border-box;
        width: 80%;
        margin: 10px auto;
        float: none;
        box-shadow: 0 0 10px rgba(0,0,0,0.5);
        border-radius: 5px;
        padding: 10px;
    }
}

@media all and (max-width: 870px) {
    pre.code,
    pre.output {
        padding-left: 0.5em;
    }

    body {
        font-size: 16px;
    }
}

@media all and (max-width: 500px) {
    body {
        font-size: 14px;
    }
}