#reference .container a.primary-button.busy {
    animation: a 2s linear infinite;
    background-image: linear-gradient(-45deg,hsla(0,0%,100%,.2) 25%,transparent 0,transparent 50%,hsla(0,0%,100%,.2) 0,hsla(0,0%,100%,.2) 75%,transparent 0,transparent);
    background-size: 50px 50px;
    box-shadow: 0 0;
    color: #fff;
    cursor: default;
    pointer-events: none
}

@keyframes a {
    0% {
        background-position: 0 0
    }

    to {
        background-position: 50px 50px
    }
}

body {
    margin: 0;
    width: 100%
}

.temporary {
    background-color: #00979d;
    height: 120px
}

@media screen and (max-width:1024px) {
    .temporary {
        height: 54px
    }
}

.main-nav #learning {
    background-color: #008184
}

#reference {
    font-family: Typonine Sans Regular,Lucida Grande,Lucida,Verdana,sans-serif;
    font-size: 14px
}

    #reference hr {
        background: #ecf1f1;
        border: 0;
        height: 1px;
        margin: 32px 0
    }

    #reference a {
        cursor: pointer
    }

    #reference h1 {
        color: #374146;
        font-size: 30px;
        letter-spacing: 3px;
        line-height: 35px;
        margin-top: 0
    }

    #reference h1, #reference h2 {
        font-family: Typonine Sans Light,Lucida Grande,Lucida,Verdana,sans-serif;
        font-weight: 400
    }

    #reference h2 {
        color: #7f8c8d;
        font-size: 22px;
        letter-spacing: 1px;
        line-height: 32px;
        text-transform: uppercase
    }

    #reference h3 {
        color: #e67e22;
        font-family: Typonine Sans Regular,Lucida Grande,Lucida,Verdana,sans-serif;
        font-size: 16px;
        font-weight: 400;
        letter-spacing: 1px;
        line-height: 25px;
        margin-bottom: 3px;
        margin-top: 32px
    }

    #reference h5 {
        color: #374146;
        font-family: Typonine Sans Light,Lucida Grande,Lucida,Verdana,sans-serif
    }

    #reference .content h2 {
        color: #e67e22;
        font-family: Typonine Sans Regular,Lucida Grande,Lucida,Verdana,sans-serif;
        font-size: 30px;
        text-transform: none
    }

    #reference .first-column {
        margin-right: 50px;
        min-width: 200px;
        width: 20%
    }

@media screen and (max-width:900px) {
    #reference .first-column {
        width: 165px
    }
}

@media screen and (max-width:768px) {
    #reference .first-column {
        margin: 0;
        width: 100%
    }
}

#reference .first-column .adv-banner {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center;
    margin-bottom: 55px;
    margin-top: 45px
}

#reference .main-content-column {
    width: calc(80% - 50px)
}

@media screen and (max-width:900px) {
    #reference .main-content-column {
        width: calc(100% - 165px - 50px)
    }
}

@media screen and (max-width:768px) {
    #reference .main-content-column {
        width: 100%
    }
}

#reference .container {
    color: #434f54;
    margin: 5em auto;
    max-width: 1170px;
    min-height: 35em;
    padding: 0 35px;
    width: 100%
}

@media screen and (max-width:768px) {
    #reference .container {
        max-width: 540px
    }
}

#reference .container p {
    color: #374146;
    font-family: Typonine Sans Light,Lucida Grande,Lucida,Verdana,sans-serif;
    font-size: 14px;
    letter-spacing: .5px;
    line-height: 22px
}

#reference .container a {
    color: #00979d
}

    #reference .container a, #reference .container a:hover {
        text-decoration: none;
        transition-duration: .2s;
        transition-property: color
    }

        #reference .container a:hover {
            color: #005c5f
        }

        #reference .container a:focus {
            outline: none;
            text-decoration: none
        }

        #reference .container a.primary-button {
            background-color: #00979d;
            border: 1px solid #00979d;
            border-radius: 2px 2px 0 0;
            box-shadow: 0 4px #005c5f;
            color: #fff;
            cursor: pointer;
            font-family: Typonine Sans Regular,Lucida Grande,Lucida,Verdana,sans-serif;
            font-size: 14px;
            letter-spacing: 1.28px;
            line-height: normal;
            outline: none;
            padding: 9px 18px;
            text-align: center;
            text-transform: uppercase;
            transition: box-shadow .1s ease-out,transform .1s ease-out;
            display: inline-block;
            margin-top: 10px
        }

            #reference .container a.primary-button:focus, #reference .container a.primary-button:hover {
                box-shadow: 0 2px #005c5f;
                outline: none;
                transform: translateY(2px)
            }

            #reference .container a.primary-button:active {
                box-shadow: none;
                transform: translateY(4px)
            }

            #reference .container a.primary-button.secondary {
                background-color: #fff;
                border: 1px solid rgba(0,151,157,.5);
                box-shadow: 0 4px #00979d;
                color: #005c5f
            }

                #reference .container a.primary-button.secondary:focus, #reference .container a.primary-button.secondary:hover {
                    box-shadow: 0 2px #00979d
                }

                #reference .container a.primary-button.secondary:active {
                    box-shadow: none
                }

            #reference .container a.primary-button.inactive, #reference .container a.primary-button:disabled {
                cursor: default;
                opacity: .4;
                pointer-events: none
            }

            #reference .container a.primary-button:active, #reference .container a.primary-button:hover {
                color: #fff
            }

#reference mark {
    background-color: #f39c12;
    color: #fff;
    font-size: 13px;
    padding: 1px 5px
}

#reference ul {
    list-style-type: disc;
    margin: 0;
    padding: 0 24px
}

    #reference ul li {
        color: #7f8c8d
    }

        #reference ul li p {
            color: #374146;
            line-height: 16px;
            margin: 8px 0
        }

#reference .row {
    display: -ms-flexbox;
    display: flex
}

#reference .definition ul, #reference .example ul, #reference .language ul {
    list-style: none;
    padding-left: 0
}

#reference .language mark {
    background-color: #95a5a6;
    text-transform: uppercase
}

#reference .definition mark {
    background-color: #00979d
}

#reference .example mark {
    background-color: #7fcbcd
}

#reference ol {
    color: #374146;
    list-style-type: decimal;
    margin: 0;
    padding: 0 24px
}

    #reference ol li {
        color: #7f8c8d;
        font-size: 14px
    }

        #reference ol li p {
            color: #374146;
            line-height: 22px;
            margin: 8px 0
        }

#reference code {
    color: #000;
    font-family: Typonine Mono Regular,Lucida Grande,Lucida,Verdana,sans-serif;
    font-size: 14px
}

    #reference code, #reference code .hljs .arduino, #reference pre {
        background-color: #f7f9f9
    }

#reference pre {
    border: 0;
    border-radius: 0;
    box-sizing: border-box;
    overflow-x: auto;
    width: 100%
}

    #reference pre code {
        padding: 0
    }

#reference table {
    border: 1px solid #d5e9e9;
    line-height: 22px;
    width: 100%
}

    #reference table tr {
        height: 38px
    }

        #reference table tr:nth-child(odd) {
            background-color: #f6fafa
        }

    #reference table td, #reference table td:first-child {
        padding: 4px 8px
    }

        #reference table td p {
            margin: 0
        }

    #reference table th {
        font-weight: 400;
        padding: 4px 8px;
        text-transform: uppercase
    }

#reference .category {
    column-count: 3;
    column-gap: 15px
}

#reference .category-content {
    column-fill: balance
}

@media screen and (max-width:1130px) {
    #reference .category {
        column-count: 2
    }
}

@media screen and (max-width:768px) {
    #reference .row {
        -ms-flex-direction: column;
        flex-direction: column
    }

    #reference .first-column {
        margin-bottom: 30px;
        margin-left: auto;
        margin-right: auto
    }

    #reference .category {
        column-count: 1
    }
}

#reference .subcategory {
    break-inside: avoid;
    min-width: 285px;
    opacity: 1;
    padding: 15px 2px;
    transition: color .2s ease
}

    #reference .subcategory h5 {
        font-size: 14px;
        margin: 15px 0 7px
    }

    #reference .subcategory a {
        line-height: 27px
    }

#reference #functions .subcategory a {
    color: #d35400
}

    #reference #functions .subcategory a:hover {
        color: #f39c12
    }

#reference #variables .subcategory a {
    color: #00979d
}

    #reference #variables .subcategory a:hover {
        color: #005c5f
    }

#reference #structure .subcategory a {
    color: #728e00
}

    #reference #structure .subcategory a:hover {
        color: #475607
    }

#reference .documentation-page-nav {
    color: #00979d;
    list-style: none;
    margin-right: 0;
    margin-top: 2px;
    padding: 0;
    padding-left: 0
}

    #reference .documentation-page-nav li {
        border-bottom: 1px solid #dae3e3;
        margin: 0;
        padding: 0 0 0 36px;
        position: relative
    }

        #reference .documentation-page-nav li:first-child {
            border-top: 1px solid #dae3e3
        }

        #reference .documentation-page-nav li a {
            display: block;
            font-size: 14px;
            letter-spacing: 1.28px;
            line-height: 16px;
            padding: 8px 0;
            text-transform: uppercase
        }

        #reference .documentation-page-nav li:first-child .icon {
            background: #fff;
            border: 2px solid #bcac99;
            height: 6px;
            margin-right: -1px;
            transform: rotate(45deg);
            width: 6px
        }

        #reference .documentation-page-nav li:nth-child(2) .icon {
            background: #f1c40f;
            border-bottom-right-radius: 50%;
            border-top-right-radius: 50%;
            height: 8px;
            margin-left: -3px;
            width: 8px
        }

            #reference .documentation-page-nav li:nth-child(2) .icon:before {
                background: #fff;
                content: "";
                display: inherit;
                height: 8px;
                width: 4px
            }

        #reference .documentation-page-nav li:nth-child(3) .icon {
            background: #00979d;
            height: 6px;
            margin-left: 3px;
            width: 2px
        }

            #reference .documentation-page-nav li:nth-child(3) .icon:before {
                background: #00979d;
                content: "";
                display: inherit;
                height: 2px;
                margin: 2px 0 0 -2px;
                width: 6px
            }

    #reference .documentation-page-nav .reference-menu {
        border-left: 1px solid #f1c40f;
        left: -12px;
        list-style-type: none;
        padding: 16px 0 0;
        position: relative;
        top: -17px
    }

        #reference .documentation-page-nav .reference-menu li {
            border: 0;
            padding-bottom: 8px;
            padding-top: 8px
        }

            #reference .documentation-page-nav .reference-menu li:last-child {
                padding-bottom: 0
            }

            #reference .documentation-page-nav .reference-menu li a {
                display: inline;
                font-size: 14px;
                line-height: 14px;
                padding: 0
            }

            #reference .documentation-page-nav .reference-menu li .active {
                background-color: #00979d;
                box-shadow: 4px 0 0 #00979d,-4px 0 0 #00979d;
                color: #fff;
                left: 4px;
                position: relative;
                transition: box-shadow .3s,background-color .3s
            }

                #reference .documentation-page-nav .reference-menu li .active:hover {
                    background-color: #008184;
                    box-shadow: 4px 0 0 #008184,-4px 0 0 #008184;
                    transition: box-shadow .3s,background-color .3s
                }

#reference .sidebar-nav {
    background-color: #fff;
    margin: 0 auto 30px;
    position: -webkit-sticky;
    position: sticky;
    top: 80px
}

    #reference .sidebar-nav p {
        font-size: 13px;
        line-height: 16px
    }

#reference .bullet-icon {
    -ms-flex-align: center;
    align-items: center;
    display: -ms-flexbox;
    display: flex;
    height: 24px;
    left: 0;
    margin-left: 2px;
    position: absolute;
    top: 3px;
    width: 24px
}

    #reference .bullet-icon .line {
        background: #f1c40f;
        height: 1px;
        width: 17px
    }

    #reference .bullet-icon .icon {
        position: relative;
        z-index: 1
    }

#reference .has-submenu li {
    border-bottom: 0;
    font-size: 15px;
    padding-left: 12px
}

#reference .licence {
    margin-top: 20px
}

#reference .breadcrumbs {
    margin-bottom: 1em
}

    #reference .breadcrumbs a {
        color: #374146;
        transition: color .2s ease
    }

        #reference .breadcrumbs a:hover {
            color: #00979d;
            transition: color .2s ease
        }

#reference #auto-see-also {
    display: none
}

#ad_container_zone {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: center;
    justify-content: center
}

    #ad_container_zone img {
        height: auto !important;
        max-width: 100%
    }

.hljs {
    display: block;
    overflow-x: auto;
    padding: .5em;
    background: #fff
}

.hljs, .hljs-subst {
    color: #434f54
}

.hljs-attribute, .hljs-doctag, .hljs-keyword, .hljs-name, .hljs-selector-tag {
    color: #00979d
}

.hljs-addition, .hljs-built_in, .hljs-bullet, .hljs-code, .hljs-literal {
    color: #d35400
}

.hljs-link, .hljs-regexp, .hljs-selector-attr, .hljs-selector-pseudo, .hljs-symbol, .hljs-template-variable, .hljs-variable {
    color: #00979d
}

.hljs-deletion, .hljs-quote, .hljs-selector-class, .hljs-selector-id, .hljs-string, .hljs-template-tag, .hljs-type {
    color: #005c5f
}

.hljs-section, .hljs-title {
    color: #800;
    font-weight: 700
}

.hljs-comment {
    color: hsla(184,9%,62%,.8)
}

.hljs-meta-keyword {
    color: #728e00
}

.hljs-meta {
    color: #728e00;
    color: #434f54
}

.hljs-emphasis {
    font-style: italic
}

.hljs-strong {
    font-weight: 700
}

.hljs-function {
    color: #728e00
}

.hljs-number {
    color: #8a7b52
}
h3 {
    color: #E67E22;
}
h4 {
    color: #E67E22;
}

ul, ol, pre, dl, p {
    margin-top: 0px;
    margin-bottom: 0px;
}

code {
    white-space: nowrap;
}

.vspace {
    margin-top: 1.33em;
}

.indent {
    margin-left: 40px;
}

.outdent {
    margin-left: 40px;
    text-indent: -40px;
}

a.createlinktext {
    text-decoration: none;
    border-bottom: 1px dotted gray;
}

a.createlink {
    text-decoration: none;
    position: relative;
    top: -0.5em;
    font-weight: bold;
    font-size: smaller;
    border-bottom: none;
}

img {
    border: 0px;
}

span.anchor {
    float: left;
    font-size: 10px;
    margin-left: -10px;
    width: 10px;
    position: relative;
    top: -0.1em;
    text-align: center;
}

    span.anchor a {
        text-decoration: none;
    }

        span.anchor a:hover {
            text-decoration: underline;
        }

ol.toc {
    text-indent: -20px;
    list-style: none;
}

    ol.toc ol.toc {
        text-indent: -40px;
    }

div.tocfloat {
    font-size: smaller;
    margin-bottom: 10px;
    border-top: 1px dotted #555555;
    border-bottom: 1px dotted #555555;
    padding-top: 5px;
    padding-bottom: 5px;
    width: 38%;
    float: right;
    margin-left: 10px;
    clear: right;
    margin-right: -13px;
    padding-right: 13px;
    padding-left: 13px;
    background-color: #eeeeee;
}

div.toc {
    font-size: smaller;
    padding: 5px;
    border: 1px dotted #cccccc;
    background: #f7f7f7;
    margin-bottom: 10px;
}

    div.toc p {
        background-color: #f9f6d6;
        margin-top: -5px;
        padding-top: 5px;
        margin-left: -5px;
        padding-left: 5px;
        margin-right: -5px;
        padding-right: 5px;
        padding-bottom: 3px;
        border-bottom: 1px dotted #cccccc;
    }

.editconflict {
    color: green;
    font-style: italic;
    margin-top: 1.33em;
    margin-bottom: 1.33em;
}

table.markup {
    border: 2px dotted #ccf;
    width: 90%;
}

td.markup1, td.markup2 {
    padding-left: 10px;
    padding-right: 10px;
}

td.markup1 {
    border-bottom: 1px solid #ccf;
}

div.faq {
    margin-left: 2em;
}

    div.faq p.question {
        margin: 1em 0 0.75em -2em;
        font-weight: bold;
    }

    div.faq hr {
        margin-left: -2em;
    }

.frame {
    border: 1px solid #cccccc;
    padding: 4px;
    background-color: #f9f9f9;
}

.lfloat {
    float: left;
    margin-right: 0.5em;
}

.rfloat {
    float: right;
    margin-left: 0.5em;
}

a.varlink {
    text-decoration: none;
}
.arduino {
    font-family: monospace;
}

    .arduino .imp {
        font-weight: bold;
        color: red;
    }

    .arduino .kw1 {
        color: #CC6600;
    }

    .arduino .kw2 {
        color: #006699;
    }

    .arduino .kw3 {
        color: #CC6600;
        font-weight: bold;
    }

    .arduino .co1 {
        color: #7E7E7E;
        font-style: italic;
    }

    .arduino .co2 {
        color: #7E7E7E;
    }

    .arduino .coMULTI {
        color: #7E7E7E;
        font-style: italic;
    }

    .arduino .es0 {
        color: #000099;
        font-weight: bold;
    }

    .arduino .es1 {
        color: #000099;
        font-weight: bold;
    }

    .arduino .es2 {
        color: #660099;
        font-weight: bold;
    }

    .arduino .es3 {
        color: #660099;
        font-weight: bold;
    }

    .arduino .es4 {
        color: #660099;
        font-weight: bold;
    }

    .arduino .es5 {
        color: #006699;
        font-weight: bold;
    }

    .arduino .br0 {
        color: #000000;
    }

    .arduino .sy0 {
        color: #000000;
    }

    .arduino .st0 {
        color: #0066CC;
    }

    .arduino .nu0 {
        color: #000000;
    }

    .arduino .nu6 {
        color: #208080;
    }

    .arduino .nu8 {
        color: #208080;
    }

    .arduino .nu12 {
        color: #208080;
    }

    .arduino .nu16 {
        color: #800080;
    }

    .arduino .nu17 {
        color: #800080;
    }

    .arduino .nu18 {
        color: #800080;
    }

    .arduino .nu19 {
        color: #800080;
    }

    .arduino .me1 {
        color: #ff1493;
    }

    .arduino .me2 {
        color: #ff1493;
    }

    .arduino span.xtra {
        display: block;
    }

.sourceblocklink {
    text-align: right;
    font-size: smaller;
}

.sourceblocktext {
    padding: 0.5em;
    color: #000000;
    background-color: #ECF1F1;
}

.sourceblock .sourceblocktext .arduino {
    font-family: 'TyponineSans Monospace Regular 4';
    font-size: 14px;
    line-height: 18px;
}

code {
    background-color: #ECF1F1;
    font-size: 15px;
    line-height: 19px;
    padding: 2px 10px 5px 10px;
    color:#333333;
}

.sourceblocktext div {
    font-family: monospace;
    font-size: small;
    line-height: 1;
    height: 1%;
}

    .sourceblocktext div.head,
    .sourceblocktext div.foot {
        font: italic medium serif;
        padding: 0.5em;
    }
<style type="text/css" >
@font-face {
    font-family: 'Monospace';
    src: url("css/fonts/Monospace.eot");
    src: url("css/fonts/Monospace.eot") format("embedded-opentype"), url("css/fonts/Monospace.woff") format("woff"), url("css/fonts/Monospace.ttf") format("truetype"), url("css/fonts/Monospace.svg") format("svg");
}

@font-face {
    font-family: 'MonospaceBold';
    src: url("css/fonts/MonospaceBold.eot");
    src: url("css/fonts/MonospaceBold.eot") format("embedded-opentype"), url("css/fonts/MonospaceBold.woff") format("woff"), url("css/fonts/MonospaceBold.ttf") format("truetype"), url("css/fonts/MonospaceBold.svg") format("svg");
}

</style >
<style type="text/css" >
main {
    display: block;
    width: 100%;
    min-width: 18em;
    margin: 2em auto;
}

figure {
    display: block;
    margin: 1em 0;
    border: 1px solid #ccc;
    border-radius: 3px;
    background: #eee;
}

    figure figcaption {
        display: block;
        padding: 5px 10px 4px 10px;
        border-bottom: 1px solid #ccc;
        border-radius: 3px 3px 0 0;
        font-weight: bold;
        background: #ddd;
        color: #777;
    }

pre, pre code, pre samp {
    display: block;
    margin: 0;
    cursor: text;
}

    pre code, pre samp {
        white-space: pre;
        padding: 10px;
        -moz-tab-size: 4;
        -o-tab-size: 4;
        tab-size: 4;
        overflow-x: auto;
    }

    pre.line-numbers {
        position: relative;
    }

        pre.line-numbers code,
        pre.line-numbers samp {
            margin-left: 3em;
            border-left: 1px solid #ccc;
        }

        pre.line-numbers > div {
            display: block;
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            border-radius: 0 0 0 3px;
            background: #e5e5e5;
            overflow: hidden;
            counter-reset: line;
        }

            pre.line-numbers > div > span {
                display: block;
                width: 2.5em;
                padding: 0 0 0 0;
                text-align: right;
                color: #777;
                overflow: hidden;
                counter-increment: line;
                margin-top: -0.575em;
            }

                pre.line-numbers > div > span::before {
                    content: counter(line);
                }

                pre.line-numbers > div > span:first-child {
                    margin-top: 7px;
                }

@media print {
    pre code {
        overflow-x: visible;
        white-space: pre-wrap;
    }

    pre.line-numbers div {
        display: none;
    }

    pre.line-numbers > code,
    pre.line-numbers > samp {
        margin-left: 0;
    }
}

pre t {
    font-weight: normal;
    color: #039;
}

pre u, pre u b {
    text-decoration: none;
    color: #083;
}

pre i, pre i *, pre i * * {
    letter-spacing: -0.1em;
    text-decoration: none;
    font-style: normal;
    color: #c55;
}

</style >