body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    margin: 20px auto;
    background-color: #fff;
    padding: 20px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.tabs {
    display: flex;
    justify-content: space-between;
    border-bottom: 2px solid #ddd;
    padding: 0;
    list-style-type: none;
}

.tabs li {
    cursor: pointer;
    padding: 10px;
    flex: 1;
    text-align: center;
    border: 1px solid #ddd;
    border-bottom: none;
    background-color: #f4f4f4;
    transition: background-color 0.2s;
}

.tabs li:hover {
    background-color: #e4e4e4;
}

.tabs li.active {
    background-color: #fff;
}

.tab-content > div {
    display: none;
    padding: 20px;
}

.tab-content > div.active {
    display: block;
}