zulip/static/styles/portico/markdown.css

.markdown {
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.5;
    overflow: auto;

    h1[id],
    h2[id],
    h3[id],
    h4[id] {
        &::before {
            display: block;
            content: " ";
            visibility: hidden;
        }
    }

    h2[id],
    h3[id],
    h4[id] {
        &::before {
            margin-top: -10px;
            height: 10px;
        }
    }

    h1 {
        border-bottom: 1px solid hsl(0, 0%, 93%);
        padding-bottom: 10px;
        margin-bottom: 15px;

        &[id] {
            &::before {
                margin-top: -30px;
                height: 30px;
            }
        }
        &#using-zulip,
        &#zulip-administration {
            font-size: 1.75em;
            padding: 10px 0;
            margin-bottom: 0;
            line-height: 100%;
        }
    }

    h2 {
        font-size: 1.5em;
        line-height: 1.25;
        margin: 20px 0 5px 0;
    }

    h3 {
        font-size: 1.25em;
        line-height: 1.25;
        opacity: 1;
        margin-bottom: 7px;
    }

    h1,
    h2,
    h3 {
        font-weight: 700;
        user-select: none;

        &:hover {
            cursor: pointer;

            &::after {
                display: inline-block;
                font: normal normal normal 16px/1 FontAwesome;

                cursor: pointer;
                content: "\f0c1";
                margin-left: 5px;
                vertical-align: middle;
            }
        }
    }

    /* Since markdown doesn't make it easy to put an HTML element around a
       markdown table, we instead have a model of putting an empty div
       before it to configure a specific table's styling. */
    div.centered_table + table td:not(:first-child),
    div.centered_table + table th {
        text-align: center;
    }

    .legend_symbol {
        position: absolute;
        left: calc(40px);
        transform: translateX(-50%);

        /* Adjust for 50px closed left sidebar state */
        @media (width <= 800px) {
            left: calc(5% + 50px);
        }
    }

    .legend_label {
        position: relative;
        left: calc(30px);
    }

    ul,
    ol {
        margin-left: 30px;
    }

    li {
        line-height: 150%;
    }

    ol {
        counter-reset: item;
        list-style: none;

        & > li {
            counter-increment: item;
            margin-bottom: 5px;

            &::before {
                content: counter(item);
                display: inline-block;
                vertical-align: top;
                padding: 3px 6.5px 3px 7.5px;
                margin-right: 5px;
                background-color: hsl(170, 48%, 54%);
                color: hsl(0, 0%, 100%);
                border-radius: 100%;
                font-size: 0.9em;
                line-height: 1.1;
                text-align: center;
            }

            & > p {
                display: inline-block;
                vertical-align: top;
                /* This needs to be wide enough for 2-digit numbers. */
                max-width: calc(100% - 40px);
                position: relative;
                top: -2px;
            }

            & > .codehilite,
            & > p:not(:first-child) {
                padding-left: 24px;
                margin-left: 5px;
            }

            .codehilite {
                background-color: hsl(0, 0%, 100%);
            }

            & > ul {
                padding-left: 20px;
            }

            .warn,
            .tip,
            .keyboard_tip {
                margin: 5px 25px 5px;
            }
        }

        p {
            margin: 0 0 2px;
        }

        @media (width <= 500px) {
            margin-left: 0;
        }
    }

    ul {
        margin: 0 10px 15px 25px;

        & > li {
            margin: 5px 0;

            ::before {
                content: none;
            }
        }
    }

    .content {
        padding: 30px;
        max-width: 768px;
        background-color: hsl(0, 0%, 100%);

        ol li p:not(:first-child) {
            display: block;
        }

        i.zulip-icon {
            margin: 0 2px 2px 2px;
            vertical-align: middle;
        }

        @media (width <= 500px) {
            padding: 10px;
        }
    }

    a {
        color: hsl(176, 46%, 41%);
        font-weight: 600;
    }

    strong {
        font-weight: 600;
    }

    img {
        vertical-align: top;
        box-shadow: 0 0 4px hsla(0, 0%, 0%, 0.05);
        border: 1px solid hsl(0, 0%, 87%);
        border-radius: 4px;

        &.inline {
            height: 1.4em;
            box-shadow: none;
        }

        &.emoji-small {
            width: 20px;
            box-shadow: none;
            border: none;
            vertical-align: sub;
        }

        &.emoji-big {
            width: 25px;
            box-shadow: none;
            border: none;
        }
    }

    .warn,
    .tip,
    .keyboard_tip {
        position: relative;
        display: block;
        background-color: hsl(210, 22%, 96%);
        border: 1px solid hsl(210, 22%, 90%);
        border-radius: 4px;
        padding: 10px;
        margin: 5px 0;

        p {
            margin-bottom: 0;
        }

        p:first-of-type {
            display: inline;
        }
    }

    .tip,
    .keyboard_tip {
        background-color: hsl(46, 63%, 95%);
        border: 1px solid hsl(46, 63%, 84%);
    }

    .tip::before {
        display: inline;
        content: "\f0eb   Tip:  ";
        font-family: FontAwesome, "Source Sans 3", sans-serif;
        font-weight: 600;
    }

    .keyboard_tip::before {
        display: inline;
        content: "\f11c   Keyboard shortcut:  ";
        font-family: FontAwesome, "Source Sans 3", sans-serif;
        font-weight: 600;
    }

    .indicator {
        position: relative;
        display: inline-block;
        top: 1px;
        padding: 5px;
        border-radius: 6px;

        &.grey {
            border: 1px solid hsl(0, 0%, 80%);
        }

        &.grey-line {
            border: 1px solid hsl(0, 0%, 80%);
            top: 2px;

            &::after {
                content: "";
                background: hsl(0, 0%, 80%);
                height: 1.5px;
                width: 6px;
                display: block;
                margin: 0.5px -2px;
            }
        }

        &.orange {
            border: 1px solid hsl(29, 84%, 51%);
            background: linear-gradient(
                to bottom,
                hsla(0, 0%, 100%, 0) 50%,
                hsla(29, 84%, 51%, 1) 50%
            );
        }

        &.green {
            border: 1px solid hsl(106, 74%, 44%);
            background-color: hsla(106, 74%, 44%, 0.3);
        }

        &.green.solid {
            background-color: hsl(106, 74%, 44%);
        }
    }

    code {
        /* Copied from rendered_markdown.css */
        font-size: 0.825em;
        unicode-bidi: embed;
        direction: ltr;
        white-space: initial;
        padding: 0;
        padding-right: 4px;
        background-color: hsl(0, 0%, 100%);
    }

    pre {
        code {
            font-size: 14px;
            white-space: pre-wrap;
            padding: 0;
        }
    }

    .code-section {
        ol {
            margin-left: 15px;
            margin-top: 10px;
        }
        ul.nav {
            margin: 0;

            li {
                display: inline-block;
                padding: 5px 14px;
                margin: 0;

                cursor: pointer;

                &.active {
                    color: hsl(176, 46%, 41%);
                    margin-bottom: -1px;

                    border: 1px solid hsl(0, 0%, 87%);
                    border-bottom: 1px solid hsl(0, 0%, 100%);
                    border-radius: 4px 4px 0 0;
                }
            }
        }

        &.no-tabs ul.nav {
            display: none;
        }

        .blocks {
            padding: 10px;
            margin-bottom: 10px;
            border: 1px solid hsl(0, 0%, 87%);

            & > div {
                display: none;
            }
        }

        &.has-tabs .blocks {
            border-radius: 0 6px 6px 6px;
        }

        &.no-tabs .blocks {
            border-radius: 6px;
        }

        &.no-tabs .blocks > div,
        &.has-tabs .blocks > .active {
            display: block;
        }
    }
}