body {
    font-size: 0;
    margin: 0;
    text-align: center;
    font-family: 'Yu Gothic', 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    background-color: gray;
}

main {
    margin: 0 auto;
    max-width: 640px;
    padding: 0 25px;
    background-color: lightskyblue;
    min-height: 100vh;
}

/* #region グローバル */
.lefting {
    text-align: left;
}
.centering {
    text-align: center;
}
.righting {
    text-align: right;
}

.mincho {
    font-family: "Yu Mincho", "Times New Roman";
}

p {
    margin: 5px 0 15px 0;
    padding-left: 10px;
}

ul {
    margin: 0;
    padding-left: 30px;
    text-align: left;
}

footer {
    font-size: medium; /* フォントサイズの復旧 */
}

    footer small {
        display: block;
    }

/* #region テキスト装飾 */
span.bold {
    font-weight: bold;
}
span.underline {
    text-decoration: underline;
}
.text-xxlarge {
    font-size: xx-large;
}
.text-xlarge {
    font-size: x-large;
}
.text-larger {
    font-size: larger;
}
.text-large {
    font-size: large;
}
.text-medium {
    font-size: medium;
}
.text-small {
    font-size: small;
}

/* #endregion */

/* #endregion */

/* #region header */
header {
    text-align: left;
    display: block;
    width: 100%;
    margin-bottom: 15px;
}

    header a {
        text-decoration: none;
    }

    header div.head {
        line-height: 100px;
        background-image: url(imgs/header.png);
        background-size: 100% 100%;
        height: 100px;
    }

        header div.head img {
            height: 100px;
        }

        header div.head a {
            font-family: "Yu Mincho", "Times New Roman";
            color: white;
            font-size: 45px;
            margin-left: 10px;
            user-select: none;
        }

    header nav {
        text-align: right;
    }

        header nav ul {
            display: flex;
            margin-left: auto;
            grid-gap: 10px;
            padding: 0;
            margin-top: 2px;
            width: min-content;
            list-style: none;
        }

            header nav ul li {
                background-color: aliceblue;
                font-size: 1.2rem;
                line-height: 1.25rem;
            }

                header nav ul li a {
                    display: block;
                    padding: 4px 6px;
                    color: black;
                }

/* #endregion */

/* #region form */
form {
    display: inline-block;
    padding: 15px 5px;
    text-align: left;
}

    form input[type=text], input[type=password] {
        display: block;
        width: 300px;
        margin: 0 0 10px 5px;
    }
/* #endregion */

/* #region コンテナ */
div.container {
    font-size: medium; /* フォントサイズ復旧 */
    text-align: left;
    border: 1px solid darkblue;
    margin: 10px 0;
    background-color: aliceblue;
}

    div.container div.container-title {
        background-color: lightblue;
        padding: 2px 5px;
        font-size: large;
    }

    div.container div.container-content {
        margin: 10px;
    }

        div.container div.container-content img {
            max-width: 90%;
        }
/* #endregion */

/* #region Other */
img.mail {
    height: 1.25rem;
    vertical-align: text-top;
    user-select: none;
}
/* #endregion */

/*
2022/10/30 01:37
Tudash98
*/