*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #f8fafc;
    color: #0f172a;
    line-height: 1.6;
}

h1, h4 {
    margin: 0 0 .5rem;
    font-weight: 600;
}

a {
    color: #0f62fe;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -.75rem;
}

.col-xs-12 {
    width: 100%;
    padding: 0 .75rem;
    margin-bottom: 1.5rem;
}

.col-sm-4 {
    width: 100%;
}

@media (min-width: 640px) {
    .col-sm-4 {
        width: 33.333%;
    }
}

hr {
    border: 0;
    border-top: 1px solid #e2e8f0;
    margin: .5rem 0 1rem;
}