html {
    max-width: 600px;
    margin: auto;

    font-family: "Hiragino Kaku Gothic", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
}

body {
    margin-left: 10px;
    margin-right: 10px;
    /* border: 1px solid black; */
}

a:active {
    color: blue;
}

a:visited {
    color: blue;
}

dt {
    font-weight: bold;
}

code {
    font-size: large;
    background-color: #e2e2e2;
    padding: 3px;
    border-radius: 2px;
}

pre {
    background-color: #e2e2e2;
    padding: 5px;
    border-radius: 2px;
}

.danger {
    color: red;
    font-size: small;
}