.header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    background-color:rgb(132, 241, 181);
}

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 10%;
    background-color:rgb(181, 181, 181);
    color: white;
    text-align: center;
}

.imge_maintenance {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 45%;
}

.imge_logo {
    padding-left: 50px;
    width: 60px;
}

.h_1 {
    padding-top: 80px;
    text-align: center;
}

.h_2 {
    text-align: center;
}