Multiple-border box

[mhulse]

<h3 class="ap_box-title">Rules of the Road</h3>

.ap_box-title {
    color: #fff;
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: 0.05em;
    background: #008e42;
    border: 0.2rem solid #fff;
    border-radius: 0.2rem;
    box-shadow:
        0 0 0 0.5rem #008e42/*,
        0 0 0 1rem #fff,
        0 0 0 1.5rem #008e42*/;
    margin: 0;
    padding: 1rem;
    position: absolute;
    left: -3.6rem;
    top: -2rem;
}