@charset "UTF-8";
figure {
    text-align: center;
}

.inner {
    margin: 1rem auto;
    max-width: 600px;
}

header figure {
    margin: 1rem auto;
    width: 300px;
}

header h1 {
    text-align: center;
}

.contents .period {
    margin: 1rem 0;
    padding: 2rem 0;
    font-weight: bold;
    text-align: center;
    border: solid 1px black;
}

footer .copyright {
    margin-top: 3rem;
    font-weight: bold;
    text-align: center;
}

body {
    font-family: "Hiragino Kaku Gothic Pro", "ヒラギノ角ゴ ProN W3", "Noto Sans JP", "Noto Sans CJK JP", "Noto Sans", メイリオ, Meiryo, "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", Verdana, Arial, Osaka, "ＭＳ Ｐゴシック", "MS P Gothic", sans-serif;
    font-weight: 300;
    color: #555;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: #fff;
    padding: 10px;
}