Vorlage:Todo/style.css

div.notices.todo p {
    background: #fae2e2!important;
}

div.notices.todo p:first-child {
    border-image: repeating-linear-gradient(135deg, red, red 50px, white 50px, white 100px) 25 0!important;
}

div.notices.todo p:first-child:after {
    content: "Baustelle"!important;
}

div.notices.todo p:first-child::before {
    content: "👷"!important;
}