html {
    background-color: #e9ecef;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", YuGothic, "ヒラギノ角ゴ ProN W3", Hiragino Kaku Gothic ProN, Arial, "メイリオ", Meiryo, sans-serif;
    max-width: 860px;
    margin: auto;
    padding: 1em;
}
.font-Righteous {
    font-family: 'Righteous', cursive;
}
.font-Anton {
    font-family: 'Anton', sans-serif;
}