a[title^="Dead link"] {
    color: #999;
    cursor: help;
    text-decoration: line-through;
}

.disclaimer {
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 4px;
    color: #664d03;
    font-style: italic;
    margin-bottom: 1.5em;
    padding: 0.75em 1em;
}