body {
    background-color: lightblue;
}

h1 {
    color: navy;
    margin-left: 20px;
}

input[type=button], input[type=submit], input[type=reset] {
    background-color: #4CAF50;
    border: none;
    color: white;
    padding: 16px 32px;
    text-decoration: none;
    margin: 4px 2px;
    cursor: pointer;
}

/* Tip: use width: 100% for full-width buttons */