body {
    background-color: #e0ffe0;
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

h1, h2, h3 {
    color: #007700;
    font-family: 'Verdana', sans-serif;
    text-align: center;
}

a {
    color: #008800;
    text-decoration: none;
}

a:hover {
    color: #005500;
    text-decoration: underline;
}

.container {
    width: 90%;
    margin: 0 auto;
    padding: 20px;
}

.navbar {
    background-color: #004400;
    overflow: hidden;
}

.navbar a {
    float: left;
    display: block;
    color: #ffffff;
    text-align: center;
    padding: 14px 16px;
}

.navbar a:hover {
    background-color: #006600;
    color: black;
}

.footer {
    background-color: #003300;
    text-align: center;
    padding: 10px 0;
    color: #cccccc;
    position: fixed;
    width: 100%;
    bottom: 0;
}

.button {
    background-color: #009900;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    transition-duration: 0.4s;
    cursor: pointer;
}

.button:hover {
    background-color: white;
    color: black;
    border: 2px solid #009900;
}