body {
    background-color: #CCCC99;
    background-repeat: repeat-x;
    background-image: url(images-1/body_border160.gif);
    font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    margin-top: 0px;
    padding-top: 0px;
    margin-left: 0px;
    margin-right: 0px;
    margin-bottom: 0px;
    padding-right: 0px;
    padding-bottom: 0px;
    padding-left: 0px;
}
#container {
    width: 1000px;
    right: auto;
    left: auto;
    bottom: 0px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 0px;
    margin-top: 0px;
    background-image: url(url);
}
#container #header {
    width: 1000px;
    height: 159px;
    margin-top: 0px;
    float: left;
}
#header #Logo_Site img {
    margin-top: 0px;
    margin-left: 10px;
    color: #D9D8D8;
}
.MainBox h5 {
    text-align: left;
    margin-top: 0px;
    margin-bottom: 0px;
}
#header #Logo_Site {
    width: 220px;
    height: 160px;
    float: left;
    display: inline-block;
    margin-top: 0px;
}
#header #Logo_Site h1 {
    padding-top: 0px;
    padding-right: 0px;
    padding-bottom: 0px;
    padding-left: 0px;
    margin-top: 30px;
    margin-left: 20px;
    float: right;
}
#header #Chapter {
    width: 500px;
    height: 160px;
    float: left;
    display: inline-block;
    padding-top: 0px;
}
#header #Chapter h1 {
    margin-left: 0px;
    margin-top: 40px;
    text-align: center;
    color: #4C4B4B;
    font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    font-size: 20px;
}
#header #Chapter h2 {
    text-align: center;
    font-size: 16px;
}
#Navi_Area #Caption {
    display: inline-block;
    float: left;
    width: 85px;
    height: 30px;
    margin-top: 30px;
    margin-left: 5px;
}
#Navi_Area #Caption h6 {
    color: #727171;
    font-size: 8px;
    text-align: right;
}
.MainBox .Title_Box h3 {
    font-size: 16px;
    font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
#header #Navi_Area {
    width: 260px;
    height: 160px;
    float: left;
    display: inline-block;
    margin-top: 0px;
    margin-bottom: 5px;
}
#header #Navi_Area img {
    float: left;
}

#container #content {
    width: 1000px;
    float: left;
}
#content .MainBox {
    width: 1000px;
    height: auto;
    float: left;
    border-bottom-width: 1px;
    border-bottom-style: solid;
}
.MainBox .caption260 {
    width: 260px;
    height: auto;
    float: left;
}


.MainBox .caption500 {
    width: 500px;
    height: auto;
    float: left;
}
.MainBox .caption420 {
    width: 420px;
    height: auto;
    float: left;

}
.MainBox .caption450 {
    width: 450px;
    float: left;
    height: auto;
}
#Logo_Site h6 br {
    font-family: "Courier New", Courier, monospace;
}
h6 {
    font-size: 4px;
    font-family: "Courier New", Courier, monospace;
    margin-top: 0px;
}
.MainBox .caption300 {
    width: 300px;
    height: auto;
    float: left;
}
.MainBox .Title_Box {
    width: 1000px;
    height: auto;
    float: left;
}
#container #footer {
    width: 1000px;
    height: auto;
    float: left;
}
#footer h3 {
    text-align: center;
    color: #67C2E4;
    background-color: #000000;
}
#container #menu {
    width: 1000px;
    height: 869px;
    float: left;
    background-image: url(images-1/20c04_PhysicsIsExciting4.jpg);
    margin-top: 0px;
    background-repeat: no-repeat;
}
#container #menu #Chapter_Items {
    width: 600px;
    float: left;
    margin-left: 200px;
    margin-top: 207px;
    height: auto;
}
#container #menu #Section＿Items {
    width: 300px;
    height: auto;
    float: left;
    margin-top: 207px;
}
#container img {
    margin-top: 1px;
}
.MainBox .caption520 {
    width: 520px;
    float: left;
    height: auto;
}
.MainBox .caption400 {
    width: 400px;
    float: left;
    height: auto;
}
.MainBox .caption210 {
    width: 210px;
    height: auto;
    float: left;
}
#header #content .box1000 {
    width: auto;
}