html {
    scroll-behavior: smooth;
}
body {
    max-width: 400px;
    margin: 0 auto;
    background: #001D4B;
    font-family: sans-serif;
    font-size: 1.2rem;
    color: #FFFFFF
}
table {
    margin: auto;
    border-collapse: collapse;
}
td {
    padding: 3px;
    border: 1px solid #595959;
}
td.select {
    border: none;
}
table.sakuin {
    border: none;
}
td.sakuin {
    border: none;
    padding: 12px 18px;
    text-align: center;
    font-weight: bold;
    color: #FFF100;
}
a{
    color:inherit;
    text-decoration: none;
    display: block;
}
.divh {
    padding: 6px 0 0 60px;
    font-weight: bold;
}
.index {
    font-weight: bold;
    color: #FFF100;
}
.snd {
    color: #F3A78F;
}
.opt {
    color: #C7C7C7;
}
.long {
    font-size: 1.1rem;
}
iframe {
    border: none;
    height: 100%;
    width: 100%;
}
#sakuin {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
#leadsheet {
    position: absolute;
    top: 210px;
    left: 0;
    width: 100%;
    height: 480px;
}