*{
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body{
    display: block;
    margin: auto;
    justify-content: space-between;
}

h1{
    text-align: center;
    font-size: 3em;
    padding: 25px;
}

form{
    text-align: center;
}

#tabelaContatos{
    margin: auto;
}

table {
    border-collapse: collapse;
    width: 100%;
    max-width: 600px;
    margin: 20px auto;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1); 
    background-color: #fff;
}

th {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: left;
}

td {
    border: 1px solid #ddd;
    padding: 10px;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

form {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="tel"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    background-color: #333;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #555;
}