body{
    background-color: #C83046;
    font-family: "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    Meiryo,
    sans-serif;
}
.bingo_logo{
    width: 100%;
    text-align: center;
}
.bingo_logo img{
    width: 70%;
}
.content{
    background-color: white;
    width: 85%;
    margin-left: auto;
    margin-right: auto;
    padding-top: 10px;
    padding-bottom: 10px;
}
.content_naibu{
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}
.footer{
    width: 85%;
    margin-top :10px;
    margin-left: auto;
    margin-right: auto;
    text-align: right;
}
.footer img{
    width: 30%;
}