* {
    box-sizing: border-box;
}

body {
    font-family: sans-serif;
}

img {
    max-width: 100%;
}

.main {
    max-width: 960px;
    margin: auto;
}

h1, h2, h3, h4, h5, h6,
.headline {
    font-family: serif;
}

.headline--centered {
    text-align: center;
}

pre > code {
    line-height: 18px;
    font-size: 14px;
    padding: 0;
}
code, pre, .code, .keypress {
    background: #eee;
    padding: 5px;
    line-height: 2;
    font-size: 16px;
    font-family: monospace;
}

kbd {
    background: #efefef;
    border-bottom: 3px solid #cfcfcf;
    border-radius: 20%;
    padding: 3px;
    margin: 0 3px;
    line-height: 2;
    font-size: 16px;
    font-family: monospace;
}

pre,
.code--block {
    padding: 5px;
    font-size: 16px;
    line-height: normal;
}

.navigation {
    max-width: 960px;
    margin: auto;
    border-bottom: 1px solid black;
}

.navigation__logo {
    display: inline-block;
}

.navigation__entries {
    display: inline-block;
    list-style: none;
    padding: 0;
    float: right;
}

.navigation__entry {
    display: inline-block;
}

.guide {
    border-top: 1px solid grey;
    margin-top: 2em;
    padding-top: 2em;
}