.main {
    position: absolute;
    top: 10vh;
    min-height: 90vh;
    width: 100vw;
    max-width: 100vw;
    font-size: min(3vw, 3vh);
    padding: 4vh;
    box-sizing: border-box;
}
.page-header {
    text-align: center;
}