#under_construction_sign_container {
    position: relative;
    padding-top: 25px;
    padding-bottom: 25px;
    text-align: center;
}

#under_construction_sign_text {
    position: absolute;
    top: 47%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 16px;
}