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

header {
    background-color: #333;
    color: white;
    padding: 10px 20px;
    text-align: center;
}

header nav {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

header nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    padding: 10px;
    background-color: #555;
    border-radius: 5px;
}

header nav a:hover {
    background-color: #777;
}

.containerdata {
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 30px;
}

h3 {
    text-align: center;
    margin-bottom: 15px;
}

label {
    display: block;
    margin: 10px 0 5px;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="date"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

input[type="file"] {
    margin-bottom: 20px;
}

.image-group {
    border: 1px solid #ddd;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    background-color: #f9f9f9;
}