html {
    background: #fff url('../image/bg.jpg') repeat left top;
}

body {
    font-family: 'Noto Serif JP', serif;
    font-weight: 400;
    line-height: 2.4em;
}

#container {
    padding-top: 200px;
    text-align: center;
    position: relative;
}

.logo {
    width: 200px; /* 必要に応じて調整 */
    height: 200px; /* 必要に応じて調整 */
    background: url('../image/logo.png') no-repeat center center;
    background-size: contain;
    margin: 0 auto 60px; /* 下余白を調整 */
}