body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
.tabs {
    margin: 0 auto;
    max-width: 600px;
}
.tab-list {
    display: flex;
    justify-content: center;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
}
.tab {
    padding: 10px 20px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}
.tab.active {
    border-bottom: 2px solid #007bff;
    font-weight: bold;
}
.tab-content {
    display: none;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
.tab-content.active {
    display: block;
}