body {
    margin: 0;
    font-family: Roboto, -apple-system, BlinkMacSystemFont, Segoe UI, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    background-image: url(/bg.jpg);
    background-repeat: repeat;
    background-attachment: fixed;
    background-position: top left;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 0.5em 0;
    font-weight: 400;
    line-height: 1.2;
}

h1 {
    font-size: 2em;
}

a {
    color: inherit;
}

code {
    font-family: menlo, inconsolata, monospace;
    font-size: calc(1em - 2px);
    color: #555;
    background-color: #f0f0f0;
    padding: 0.2em 0.4em;
    border-radius: 2px;
}

@media (min-width: 400px) {
    body {
        font-size: 16px;
    }
}

main>.container {
    background-color: #fff;
    box-shadow: 0 0 5px 1px #6c757d;
}