*{
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.head {
    background: #007BFF;
    color: white;
    padding: 20px;
    text-align: center;
}

.body {
    padding: 20px;
}

.card-pai {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin: 10px;
    padding: 20px;
    flex: 1;
    min-width: 300px; 
}

h1, h2 {
    margin: 0 0 10px;
}

h3 {
    margin: 10px 0;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

a {
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.footer {
    text-align: center;
    padding: 10px;
    background: #007BFF;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 5px;
}