body {
    background-image: url(img/twingo-plastic.png);
    background-size: 400px;
}

#hazard-div {
    background-image: url(img/twingo-hazard-off.png);
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    width: 150px;
    height: 80px;
    cursor: pointer;
    margin: 10px auto 0 auto;
}