body {
    background-color: #37b9e4;
    margin: 0;
}
h1 {
    background-color: #1fe951;
    margin: 0;
    padding: 16px;
}
a {
    text-align:center;
    display: block;
    background-color: #f70b32;
    padding: 8px;
    text-decoration: none;
}