c.css

body {
    background-color: #111;
    font-family: serif;
    color: #fd8;
    font-size:16px;
}

object {
    width: 100%;
    border: none;
    height: 1200px;
}

a:link {
    color:#d8f;
}

a:visited{
    color:#d8f;
}

a:hover{
    color:#0fa;
}
a:active{
    color:#0fa;
}

p:hover{
    color:#0ff;
}

/*↓クラスindx,subindx,tabは見出し用のcssで、使うときはdivにclassで属性をつける*/

.indx {
    border: 1px solid #aaa;
    font-weight: bold;
    text-align: center;
    color: #fff;
    font-size: 20px;
    padding: 0px;
    font-family: cursive,sans-serif;
    line-height: 0;
    background-color:#110;
}

.subindx {
    font-weight: bold;
    color: #fff;
    font-size: 16px;
    padding: 0px;
    font-family: cursive,sans-serif;
    line-height: 0;
    background-color:#110;
    border-left:10px solid #fd8;
    border-right: 1px solid #aaa;
    border-bottom: 1px solid #aaa;
    border-top: 1px solid #aaa;
    margin-bottom:5px;
}

.tub {
    font-weight: bold;
    color: #fff;
    font-size: 16px;
    padding: 0px;
    font-family: cursive,sans-serif;
    line-height: 0;
    background-color:#110;
    text-decoration:underline;
    text-decoration-color: #fd8;
}

/*以下ヘッダー、サイドメニュー用のCSS。今後更新する必要なはいと思われる。*/

.middle {
    background-color: #000;
    width: 1000px;
    margin: auto;
    border-left: 1px solid;
    border-right: 1px solid;
    border-color: #aaa;
}

.hd {
    text-align: center;
}

.mb {
    border-bottom: 5px solid #aaa;
    text-align: center;
    font-weight: bold;
    margin-bottom: 20px;
}

.container {
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.main-contents {
    width: 70%;
    padding: 10px;
    background-color:#000;
}

.left-menu {
    border: 1px solid #aaa;
    width: 20%;
    margin: 10px;
    padding: 2px;
}

.bardelighter {
    width: 100%;
}

.center {
    text-align: center;
}