#contact_result_bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #0c730f;
    display: none;
    border-radius: 4px;
    text-align: center;
    color: #fff;
    font-size: 7vh;
    line-height: 8vh;
    font-weight: 700;
}
#contact_result_bg.error {
    background-color: #b71318;
}

#contact_result_bg.mutat {
    align-items: stretch;
    display: flex;
}
#contact_result {
    padding: 20px;
    align-items: center;
    display: flex;
}