body {
    padding-top: 50px;
    padding-bottom: 50px;
    margin: auto;
    margin-top: 0;
    margin-bottom: 0;
    width: 80vw;
    min-height: calc(100vh - 100px);
}

section {
    width: 30%;
    padding-left: 20px;
    padding-right: 20px;
}

hr {
    width: 80%;
}

header {
    text-align: center;
}

.footer {
    text-align: center;
}