body {
    background-image: url("https://www.viagenspossiveis.com.br/wp-content/uploads/2013/02/C360_2012-11-19-17-59-02.jpg");
    background-size: cover;
}

header {
    background-color: #248030;
    border-radius: 5px;
    color: #eaeaea;
}

main {
    background-color: #ffff8c;
    border-radius: 5px;
}

a {
    color: #248030;
}

button {
    background-color: #248030;
    border: 2px solid #248030;
    border-radius: 5px;
}

footer {
    background-color: #ffffff;
    border-radius: 5px;
}