body {
    padding:0;margin:0;
    position:relative;
    background:url('../images/jsgo68-image3.png');
	background-size: cover;
	width:100%;
	height:auto;
	overflow:hidden;
}

header, footer{
    margin:0;padding:0;
    background:#60b177;
    color:#ffffff;
    position: relative;
}

#mainblock {
    position:relative;
}

#billboard {
    color:white;
    position:relative;
}

#main {
    margin:0 5px 60px 5px;
    border:1px solid #408559;border-radius:20px;
    overflow-y:scroll;
    overflow-x:hidden;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Edge */
    color:white;
    background:rgba(0,0,0,0.7);
}

#main::-webkit-scrollbar {  /* Chrome, Safari 対応 */
    display:none;
}