body {
    background-color: #000;
    color: #fff;
    font-family: "ＭＳ ゴシック";
    line-height:150%;
}

#container {
    width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.display-none {
    display: none;
}

a {
    color: #00bfff;
}

a:hover {
    color: #f00;
}

.footer-content a {
    color: #00bfff;
}

.footer-content a:hover {
    color: #f00;
}

#startButtons {
    width: 460px;
    margin-left: 100px;
    position: absolute;
    top: 100px;
    background-color:#000;
    padding-top:20px;
    padding-bottom: 20px;
}