body {
    /* display: flex;
    justify-content: center;
    align-items: center; */
    height: 100vh;
    margin: 0;
    font-family: noto-sans-cjk-jp, "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック", "Yu Gothic", "游ゴシック体", YuGothic, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, sans-serif;
    background-color: #f0f0f0;
}

.container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100vw;
    padding: 10px;
    box-sizing: border-box;
}

.image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    flex: 1;
}

.rotatable-image {
    max-width: 100%;
    max-height: 100%;
    transition: transform 0.3s ease, margin-top 0.3s ease, margin-bottom 0.3s width 0.3s ease;
    -webkit-transition: -webkit-transform 0.3s;
    transform-origin: center center;
    cursor: pointer;
}

.head_child .rotatable-image {
    margin-top: 0 !important;
}

.button-container {
    text-align: center;
    margin-bottom: 20px;
}

.button-container button {
    margin: 5px;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
}

.container section {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.container section.show {
    display: block;
    opacity: 1;
}

.image-container {
    text-align: center;
    margin-bottom: 20px;
}

.rotatable-image {
    max-width: 100%;
    height: auto;
}