body {
    background-color: rgb(0, 20, 0);
    width: 100%;
    color: white;
    text-align: center;
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}

.mainPage {
    float: left;
    margin-top: 70px;
    position: relative;
    height: auto;
    width: 100%;
}