body {
    margin: 25px;
    background-color: rgb(236, 214, 182)
}
h1 {
    background-color: rgb(247, 245, 245);
    padding: 10px;
    font-size: 40px;
    text-align: center;
}
#mainboard {
    margin: 0 auto;
    background-color: rgb(247, 245, 245);
    width: 1400px;
    height: 2260px;
    padding: 10px;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
.explain {
    margin:0 auto; /* 中央寄せにできる*/
    background-color: rgb(247, 245, 245);
    padding: 9px;
    margin: 10px;
    font-size: 22px;
    text-align: left;
}
.title {
    margin-top: 200px;
    margin-bottom: 10px;
    background-color: rgb(247, 245, 245);
    padding: 15px;
    font-size: 30px;
    text-align: left;
}
.headname {
    margin-top: 50px;
    margin-bottom: 10px;
    background-color: rgb(247, 245, 245);
    padding: 15px;
    font-size: 30px;
    text-align: left;
}
.border {
    margin: 10px;
    padding-left: 10px;
    border-top: 1px solid;
    border-bottom: 1px solid;
}
table {
    margin-left: 80px;
    border: 2px solid;
    border-radius: 2;
}
.lank {
    border-right: 1px solid;
    border-bottom: 1px solid;
    font-weight: bold;
    font-size: 30px;
}
.music {
    border-right: 1px solid;
    border-bottom: 1px solid;
    font-size: 25px;
    margin: 10px;
    padding: 11px;
}
footer {
    margin: 0 auto;
    width: 1400px;
    height: 200px;
    background-color: rgb(247, 245, 245);
    padding: 1px;
}
.explainout {
    margin:0 auto; /* 中央寄せにできる*/
    background-color: rgb(241, 210, 163);
    padding: 5px;
    margin: 10px;
    font-size: 18px;
    text-align: center;
}
a.widelink {
    display: block;
}