html,
body,
div,
span,
iframe,
h1,
h2,
h3,
h4,
p,
pre,
del,
em,
img,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
form,
table,
tbody,
tr,
th,
td,
article,
aside,
footer,
header,
nav,
section {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    font-size: 100%;
    vertical-align: baseline;
    background: transparent;
    box-sizing: border-box
}

article,
aside,
footer,
header,
nav,
section {
    display: block
}

body {
    line-height: 1;
    overflow-wrap: break-word;
    word-wrap: break-word
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    vertical-align: middle;
    box-sizing: border-box
}

a {
    margin: 0;
    padding: 0;
    text-decoration: none;
    outline: none;
    font-size: 100%;
    vertical-align: baseline;
    background: transparent
}

a img {
    border-style: none
}

ul,
li {
    list-style-type: none
}

.cf:before,
.cf:after {
    content: " ";
    display: table
}

.cf:after {
    clear: both
}

/* ===================================
背景,文字,リンク設定
=================================== */

html {
    font-size: 62.5%
}

body {
    background: #000;
    /* 背景色 */
    color: #fff;
    /* 文字色 */
    font-size: 1.3em;
    /* 文字の大きさ */
    font-family: 'Segoe UI', '游ゴシック Medium', 'Yu Gothic Medium', '游ゴシック体', YuGothic, 'Hiragino Kaku Gothic ProN', 'メイリオ', Meiryo, sans-serif;
    letter-spacing: .1em;
    line-height: 1.5;
    padding: 15px;
    text-align: center
}

/*  リンク
------------------------------ */
a {
    color: inherit
}

#contents a,
footer a {
    color: #ce0000
}

a:not(.bg-none):hover {
    border-bottom: 1px solid #ce0000;
    color: #fff
}

/* ===================================
基本
=================================== */
#wrapper {
    margin: 1em 0;
    /* 中央寄せは0をautoに変更 */
    margin: 10px auto;
    padding: 20px;
    text-align: left;
    width: 450px;
    /* 全体の幅・大きさはここで変更 */
    border: 1px solid #fff;
}

footer {
    border-top: 1px dotted #fff;
    padding: 15px 0 0 80px;
    position: relative;
    text-align: right
}

/* ===================================
メニュー
=================================== */

#menu {
    border-bottom: 1px dotted #fff;
    border-top: 1px dotted #fff;
    margin: 10px 0;
    padding: 3px;
    text-align: center;
    width: 100%
}

nav li {
    display: inline-block
}

nav li a {
    color: #fff;
    line-height: 2em;
    padding: 0 5px
}

nav li a:hover {
    color: #ce0000
}

#open {
    display: none
}

/* ===================================
ページ上部へのリンク
=================================== */

#pagetop {
    background: rgba(206, 0, 0, .8);
    /* 背景 */
    color: #fff;
    /* 色 */
    display: inline-block;
    padding: 5px;
    position: absolute;
    text-align: center;
    top: 10px;
    left: 0;
    z-index: 10
}

#pagetop:hover {
    background: rgba(206, 0, 0, .8)
}

/* ===================================
見出し、枠、線
=================================== */

h1 {
    background: url(../img/icon01.png) no-repeat 0 50%;
    font-size: 1.4em;
    padding: .3em
}

h2 {
    border-bottom: 3px solid #ccc;
    font-size: 1.4em;
    margin: 15px 0
}

h2:first-letter {
    color: #ce0000;
    font-size: 1.5em
}

h3 {
    background: url(../img/icon02.png) no-repeat 0 50%;
    border-bottom: 1px dotted;
    font-size: 1.1em;
    margin: 15px 0;
    padding-left: 20px
}

h3.bl {
    background: url(../img/icon03.png) no-repeat 0 50%
}

h3:first-letter {
    font-size: 1.5em;
    margin-right: .1em
}

dt {
    font-weight: 700;
    clear: both;
    float: left;
    margin: 0 0 5px;
    width: 160px
}

dd {
    margin: 0 0 5px 170px
}

em {
    font-style: normal;
    font-weight: 700
}

input,
textarea {
    background: #000;
    border: 1px dotted;
    color: #999;
    margin: 3px 0;
    width: 250px
}

textarea {
    height: 50px
}

hr {
    border: 0;
    border-top: 1px solid #ccc;
    display: block;
    margin: 1em 0;
    padding: 0;
    height: 1px
}

.marker {
    background: #ce0000;
    background: -webkit-linear-gradient(rgba(206, 0, 0, 0) 50%, #ce0000 0%);
    background: linear-gradient(rgba(206, 0, 0, 0) 50%, #ce0000 0%)
}

.dcline {
    border-left: 5px solid #ce0000;
    margin: 5px 0;
    padding: 3px
}

.textbox {
    border: 1px dotted;
    margin: 10px 0;
    padding: 3px;
    text-align: center
}

.title {
    font-size: 1.5em;
    font-weight: 700;
    margin: 2em 0;
    text-align: right
}

.txt {
    border-left: 1px dotted;
    margin: 1em;
    padding: 0 0 0 1em
}

.frame {
    background: #000;
    border: 1px solid;
    box-shadow: 4px 4px 5px #ccc;
    padding: 6px
}

/* ===================================
スマホ、タブレット用
横幅600pxで切り替え
=================================== */

@media screen and (max-width: 600px) {
    body {
        font-size: 1.4em
    }

    #wrapper {
        width: 100%
    }

    /* 画像の縮小表示 */
    img {
        height: auto;
        max-width: 100%
    }

    dt {
        float: none;
        clear: none;
        width: auto
    }

    dd {
        margin-left: 20px
    }

    /* ===================================
スマホ、タブレット用メニュー
=================================== */

    #menu {
        margin-bottom: 52px;
        /* #openの高さ(32px)+10以上 */
        border: 0;
        padding: 0;
        text-align: left;
        position: relative
    }

    nav {
        background: #000;
        border: 1px solid #fff;
        position: absolute;
        width: 100%;
        left: 0
    }

    nav ul {
        display: none;
        width: 100%
    }

    nav li {
        width: 50%
            /* 一列ごとにするならここを100% */
    }

    nav li a {
        border-bottom: 1px dotted #fff;
        border-left: 1px dotted #fff;
        display: block;
        margin: 0 0 -1px -1px;
        padding: 10px
            /* 枠の大きさはここを調整 */
    }

    nav li a:hover {
        background: #ce0000;
        color: #000
    }

    /*  メニューを開くボタン
------------------------------ */
    #open {
        background: #ce0000;
        border: 1px solid #fff;
        color: #000;
        display: block;
        position: relative;
        text-align: center;
        height: 32px;
        line-height: 32px;
        width: 100%
    }

    #open:after {
        background: url(../img/nav-icon.png) no-repeat 10px 50%;
        content: "";
        display: inline-block;
        position: absolute;
        right: 0;
        top: 0;
        height: 32px;
        width: 100%
    }
}

/* ===================================
Collapsible Buttons
=================================== */


/* ===================================
スマホ、タブレット用
横幅480pxで切り替え
=================================== */
@media screen and (max-width: 480px) {
    nav li {
        width: 100%
    }
}