body {
    font-family: "Roboto", sans-serif;
    font-weight: 300;
}

.article {
    margin-top: 50px;
    margin-bottom: 100px;
    background: #F9F9F9;
    padding: 1rem 3rem;
    line-height: 1.5rem;
    border-radius: 3px;
}

.container-xs {
    margin-top: 100px;
}

.margin-bottom {
    margin-bottom: 50px;
}