body {
    margin: 0;
    padding: 0;
}
* {
    box-sizing: border-box;
}
.maintenance {
    background-repeat: no-repeat;
    background-position: center center;
    background-attachment: scroll;
    background-size: cover;
}

.maintenance {
    width: 100%;
    height: 100%;
    min-height: 100vh;
}

.maintenance {
    display: flex;
    flex-flow: column nowrap;
    justify-content: center;
    align-items: center;
}

.maintenance_contain {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    width: 100%;  
    padding: 15px;  
}
.maintenance_contain img {
    width: auto;
    max-width: 100%;
}