.content-list {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    padding: 0;
}

.content-list li {
    list-style: none;
    width: 100%;
    border: 1px solid #ccc;
    background-color: #d62929;
    display: block;
}

.content-list li a {
    text-decoration: none;
    color: inherit;
    height: 100%;
    width: 100%;
    display: inline-block;
}

.content-list li a span {
    font-size: 4rem;
}

.content-list li a h3 {
    margin: 0;
    font-size: 2rem;
}