body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    background: url('../img/guitars-2912447_1280.jpg') no-repeat center center fixed;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Arial', sans-serif;
}

.container {
    width: 300px;
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

header {
    margin-bottom: 20px;
}

.logo {
    width: 200px;
}

.tagline {
    color: white; /* 设置文本颜色为白色 */
    font-size: 18px; /* 设置字体大小 */
    text-align: center; /* 确保文本居中显示 */
    margin: 10px 0; /* 添加一些上下边距 */
    font-weight: bold; /* 字体加粗 */
}

#version-selector button, #pauseButton {
    background: none;
    border: 2px solid white;
    color: white;
    padding: 10px 20px;
    margin: 10px 0;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    width: 100%;
}

#version-selector button:hover, #pauseButton:hover {
    background-color: white;
    color: black;
}