html, body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f7fa;
}

* {
    box-sizing: border-box;
}

body {
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
}

.text-muted {
    color: #999;
}