hookshot/3.1.1/_site/style.css

.notice {
    color: black;
    border: 2px solid #0098d4;
    border-left-width: 2px;
    border-left-width: 5px;
    background: #e5f5fb;
    padding: 10px 20px;
}

.notice::before {
    content: "INFO: ";
    font-weight: 700;
}

.warning {
    color: black;
    border: 2px solid #dda02f;
    border-left-width: 2px;
    border-left-width: 5px;
    background: #fdcd74;
    padding: 10px 20px;
}

.warning::before {
    content: "WARNING: ";
    font-weight: 700;
}

/* icons for headers */

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(2) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/feeds.png')
}

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(3) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/figma.png')
}

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(4) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/github.png')
}

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(5) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/gitlab.png')
}

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(6) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/jira.png')
}

.chapter > li:nth-child(3) > ol:nth-child(1) > li:nth-child(7) strong:after {
    content: ' ' url('/matrix-hookshot/latest/icons/webhooks.png')
}